10(x-2) = 10 one solution no solution infinate solutions -2(y-3)= 2y- 6 one solution no solution infinate solutions

85,431 results

  1. Alg help

    10(x-2) = 10 one solution no solution infinate solutions -2(y-3)= 2y- 6 one solution no solution infinate solutions
  2. Math check

    Decide whether each equation has one, no solutions, or infanatly many solutions 1.) 2(x - 3) = 2x One solution no solutions many solutions infinatly many solutions 2.) 3(y - 3?) = 2y - 9 + y One solution no solutions many solutions infinatly many solutions 3.)10x - 2 - 6x = 3x...
  3. ALGEBRA CHECK ANSWERS

    Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. NOTE: when I write + it has a minus on the bottom too x^2+7=0 a. x= +7 b. x = +3.5 c. x= 0 d. no solution *** 3x^2=0 a. +3 b. +1/3 c. 0 *** d. no solution 1/4x...
  4. math

    Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x-3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y-3)= 2y-9+y A.One solution B.No solutions C.Infinitely many solutions 3. 10x-2-6x = 3x-2+x A.One solution...
  5. math

    Help pllsss ASAP!!! have certain answers!! i try but i do not understand! help asap! give answers and walkthrough problems for me! 1. 2(x - 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y - 3) = 2y - 9 + y (1 point) one solution no solutions ...
  6. 7th grade math Ms. Sue please

    1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no solutions infinitely many solutions 4. 4(x...
  7. CountIblis, can i bother you

    Countiblis, i know that you might be busy do you mind if i ask you the following for help.Only if you can please. can you explain to me just one more thing so i can undestand it. Now i have an equation which is : 3x = 3x + 5 which I know has no solution to it, now whereas the ...
  8. math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x...
  9. math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x a.one solution b.no solutions c.infinitely many solutions 2. 3(y – 3) = 2y – 9 + y a.one solution b.no solutions c.infinitely many solutions 3. 10x – 2 – 6x = ...
  10. VERY URGENT MATH~!!!!!!!!

    1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no solutions infinitely many solutions 4. 4(x...
  11. Math .

    3(4x - 2) = 2(6x - 3) one solution infinite solutions ** no solution a+5 = 1/5(5a + 25) one solution infinite solutions no solution ** 3(4x - 3) - 7x = 5x - 9 one solution infinite solutions no solution 8+2(8x - 6) (choose all that apply) 2(4x + 7) 9x – 10 16x – 4 ** 4(4x...
  12. Math-2 questions

    Describe the number of solutions for the equation. 5(x – 9) = 5x no solution one solution infinite solutions –2(x – 1) = 2x – 2 (1 point) infinite solutions one solution no solution
  13. My Math

    ecide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2...
  14. Chemistry

    Solution x has a pH of 4.35. Solution y has 10- times high [OH-] compared to solution x. Solution z has a pH 4.0 units higher than that of solution x. calculate the ration of [H3O+] between solutions x&y and between x&z. What is the pH of solutions y and z? classify each ...
  15. math

    Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 3x − y = −3 6x − 2y = 8 a) one and only one solution b) infinitely many solutions c) no solution can you please show the work
  16. Pre-Algebra

    Equation M: y = 3x + 4 Equation P: y = 3x + 7 Which of the following options is true about the solution to the given set of equations? No solution One solution Two solutions Ininite solutions I thought it was infinite solutions but i got the answer wrong.
  17. Math help :(

    I don't get any of these practice problems. 5. 2(x – 3) = 2x one solution no solutions infinitely many solutions 6. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many solutions 7. 10x – 2 – 6x = 3x – 2 + x one solution no solutions infinitely many ...
  18. Algebra

    2. Tell whether the system has one solution infinitely many solutions or no solution. x=-7y+34 x+7y=32 a. one solution b. infinitely many solutions c. no solution*** can you please solve this thank you
  19. Mathxxx!!!

    1. How many solutions does the equation have? 4x+3=2(2x+9) a.one solution b.no solution c. infinite number of solutions d. impossible to determine 2. How many solutions does the equation have? 4x+19=-9-6x a.one solution b.no solution c. infinite number of solutions d. ...
  20. math

    Describe the number of solutions for the equation. 13. 3(x – 3) = 3x one solution no solution infinitely many solutions 14. –2(y – 3) = 2y – 6 one solution no solution infinitely many solutions
  21. math

    how do you know when an equation has infinate many solutions and how do you know if an equation has no solutions? The second part of this question I get. If you work an equation and come up with 5=3 this is not a solution. Is that part right? I guess I do not understand the ...
  22. Biochemistry

    In one glass - 100,0 mL 0,100M KOH solution, in other - 100,mL 0,100M HNO2 solution. What is pH of solution, which was get when both solutions were mixed up (consider that V of forthcoming solution is sum of original solutions - 200,0 ml)
  23. Math

    1. Tell whether the system has one solution infinitely many solutions or no solution. 9x+8y=15 9x+8y=30 a. one solution b. infinitely many solutions*** c. no solution 2. Tell whether the system has one solution infinitely many solutions or no solution. 5x-3y=10 10x+6y=20 a. ...
  24. Math

    Decide whether each equation has one solution, no solution, or infinitely many solutions. 2(x-3)=2x A. One Solution B. No solutions C. Infinitely many solutions Is the answer A?
  25. Math

    How many real number solutions does the equation have? 0 = - 4x^2 + 7x -8 a. no solution***** b. one solution c. two solutions d. infinitely many solutions
  26. math

    How many solutions does the system have? y - 5x = -6 3y - 15x = -12 A) infinitely many solutions B) no solution C) two solutions D) one solution
  27. Math

    Describe the number of solutions for the equation. 13. 3(x – 3) = 3x (1 point) one solution no solution infinitely many solutions 14. –2(y – 3) = 2y – 6 (1 point) one solution no solution infinitely many solutions
  28. biology

    take an apricot , a walnut , few raisins square peice of spinach ,shelled egg and deshelled egg. prepare four solutions A,B,C and D.solution A is a10% solution of suger ,solution B is 80%suger solution ,solution C is10% salt solution and solutionD is80%salt solution In ...
  29. Math

    Tell whether the system has one solution infinitely many solutions or no solution. 6y=-5x+24 2.5x+3y=12 a. one solution b. infinitely many solutions c. no solution
  30. Math

    Tell whether the system has one solution infinitely many solutions or no solution. x=-7y+34 x+7y=32 a. one solution b. infinitely many solutions c. no solution
  31. Math

    Tell whether the system has one solution infinitely many solutions or no solution. 1.5x+2y=11 3x+6y=22 a. one solution b. infinitely many solutions c. no solution
  32. Math

    Tell whether the system has one solution infinitely many solutions or no solution. 1.5x+2y=11 3x+6y=22 a. one solution b. infinitely many solutions c. no solution
  33. Math

    Tell whether the system has one solution infinitely many solutions or no solution.. 1.5x+2y=11 3x+6y=22 a. one solution b. infinitely many solutions c. no solution
  34. Math

    Tell whether the system has one solution infinitely many solutions or no solution. 1.5x+2y=11 3x+6y=22 a. one solution b. infinitely many solutions c. no solution.
  35. Math

    Tell whether the system has one solution infinitely many solutions or no solution. x=-7y+34 x+7y=32 a. one solution b. infinitely many solutions c. no solution
  36. Math

    Tell whether the system has one solution infinitely many solutions or no solution. 6y=-5x+24 2.5x+3y=12 a. one solution b. infinitely many solutions*** c. no solution
  37. Math

    1. 2(x-3)=2x A. One solution B. No solutions C. Infinitely many solutions 2. 3(y-3)=2y-9+y A. One solution B. No solutions C. Infinitely many solutions 3. 10x-2-6x=3x-2+x A. One solution B. No solutions C. Infinitely many solutions 4. 4(x+3)+2x=x-8 A. One solution B. No ...
  38. MATH HELP QUICK

    1. 2(x – 3) = 2x one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x one solution no solutions infinitely many solutions 4. 4(x + 3) + 2x = x – 8 one ...
  39. algebra

    1. Tell whether the system has one solution infinitely many solutions or no solution. 6y=-5x+24 2.5x+3y=12 a. one solution b. infinitely many solutions*** c. no solution i know its B but can you solve it step by step for me thank you
  40. Math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 3(y-3)=2y-9+y A. One solution B. No Solutions C. Infinitely many solutions I did 3*y 3*3=9 2y=9+4 3-*=-6 x-27 Is the answer A?
  41. Math Please help me and fast

    13. Describe the number of solutions for the equation. 10(x-2)=10x A.) one solution B.) no solution C.) infinite solutions*** 14. Describe the number of solutions for the equation. -2(y-3)=2y-6 A.)one solution B.)no solution*** C.)infinite solutions 18. Solve b-9>20. I don'...
  42. math

    Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 5/4x − 2/3y = 8 1/4x + 5/3y = 7 Find the solution, if one exists.
  43. Algebra

    Make a conjecture about the solution of a system of equations if the result of subtracting one equation from the other is 0 = 0 A. There are no solutions b. there are infinite number of solutions c. Cannot determine any solution d. the solutions are inverses of each other
  44. Chemistry 2 - pH

    You are given an aqueous salt solution and have determined that its pH is 5.19 at 25°C. Predict which of the following three salt solutions it is most likely to be. solution (1): a solution of ammonium nitrate (NH4NO3) solution (2): a solution of potassium bromate (KBrO3) ...
  45. chemistry

    Which solutions are acidic? (Assume all solutions are at 25°C. Kw = 1.0 x 10-14 at 25°C.) A. A solution with [H+] = 9.4 x 10-6 B. A solution with [H+] = 5.5 x 10-10 C. A solution with pH = 6.1 D. A solution with [OH-] = 6.4 x 10-7 E. A solution with [OH-] = 2.0 x 10-6
  46. Chemistry

    2. You have a sugar solution (solution A) with concentration x. You pour one-fourth of this solution into a beaker, and add an equivalent volume of water (solution B). a) What is the ratio of sugar in solutions A and B? b) Compare the volumes of soutions A and B. c) What is ...
  47. Math

    how many solutions does the equation have -2(6x-4)= -12x A. one solution***** B. no solution C. an infinitive number of solutions D. impossible to determine Select all the equations that have one solution A. 4(2x+2)=8x+9**** B.3x+(-4)=6x-4**** C.9x-9=3(3x-3)**** D. 4x+5x+x=11x...
  48. Math

    how many solutions does the equation have 4x + 3=2(2x +9) 1 one solution 2 no solution 3 an infinite number of solutions 4 impossible to determine My answer 1
  49. Math! URGENT

    Describe the number of solutions for the equation. 5(x-9)=5x A. No solution B. One solution C. Infinite solutions Is the answer B? Thank You for any help.
  50. Math! URGENT

    Describe the number of solutions for the equation. -2(x-1)=2x-2 A. Infinite solutions B. One solution C. No solution Is the answer B?
  51. mixture problems

    A chemist has two solutions of sulfuric acid. One is a 25% solution, and the other is a 50% solution. How many liters of each does the chemist mix to get 10 liters of a 40% solution? 25% solution L: 50% solution L:
  52. Math

    One of Anne’s most important duties at the clinic is to prepare solutions with the correct amount of anesthetic for animals undergoing surgery. For today’s surgery, she needs 250 milliliters of a 20% solution, but only has a 10% solution and a 60% solution available. How ...
  53. Math

    A biologist has three salt solutions: some 5% solution, some 15% solution, and some 25% solution. She needs to mix some of each to get 48 liters of 18.75% solution. She wants the number of liters of the 25% solution to be equal to one liter less than the sum of twice the ...
  54. math

    Describe the Number of solutions for the equation. -2(x-1)=2x-2 (1 point) A. Infinite solution. B. One solution. C. No solution.
  55. math :(

    No solutions, one solution, or infinitely many solutions??? 2(x – 3) = 2x No solution* one solution infinitely solution 3(y – 3) = 2y – 9 + y No solution one solution infinitely solution 10x – 2 – 6x = 3x – 2 + x No solution one solution infinitely solution 4(x + 3...
  56. Chemistry

    i. Which of the following solutions has the lowest pH (more acidic). Explain you answers. a. a 0.1 M solution of a strong acid or a 0.1 M solution of a weak acid. b. a 0.1 M solution of an acid with Ka=2×10-3 or one with Ka=8×10-6 c. a 0.1 M solutions of a base with pKb=4.5 ...
  57. Chemistry

    i. Which of the following solutions has the lowest pH (more acidic). Explain you answers. a. a 0.1 M solution of a strong acid or a 0.1 M solution of a weak acid. b. a 0.1 M solution of an acid with Ka=2×10-3 or one with Ka=8×10-6 c. a 0.1 M solutions of a base with pKb=4.5 ...
  58. Chemistry

    i. Which of the following solutions has the lowest pH (more acidic). Explain you answers. a. a 0.1 M solution of a strong acid or a 0.1 M solution of a weak acid. b. a 0.1 M solution of an acid with Ka=2×10-3 or one with Ka=8×10-6 c. a 0.1 M solutions of a base with pKb=4.5 ...
  59. Chemistry

    I was just wanting to make sure I did these right. How many grams of solute are in each of the following solutions? a.) 2.5 L of 3.0 M Al(NO3)3 solution. for this one I get 1600 g of Al(NO3)3 b.) 75 ml of 0.5 M C6H12O6 solution. and for this one I get 6.8g of C6 H12 O6 How ...
  60. CHEMISTRY

    Which of the following solutions contain the greatest total ion concentration? a) one mole of potassium chloride dissolved in 1.0L of solution b)one mole of sodium phosphate dissolved in 1.0L of solution c)one mole of ammonium carbonate dissolved in 1.0L of solution d) one ...
  61. CHEMISTRY

    Which of the following solutions contain the greatest total ion concentration? a) one mole of potassium chloride dissolved in 1.0L of solution b)one mole of sodium phosphate dissolved in 1.0L of solution c)one mole of ammonium carbonate dissolved in 1.0L of solution d) one ...
  62. math help please

    Which cannot describe a system of linear equations? no solution exactly two solutions infinite solutions exactly one solution I thought it was A or D but someone else is telling me it is B...no I'm confused...I thought it was 2 or more solutions
  63. Math

    Find all real number solutions to (cubed root 3x-8)-1=0 If there is more than one solution, separate them with commas. If there is no solution, answer as "No solution."
  64. Math

    1. In the lab, Deon has two solutions that contain alcohol and is mixing them with each other. Solution A is 40% alcohol and Solution B is 12% alcohol. He uses 1000 milliliters of Solution A. How many milliliters of Solution B does he use, if the resulting mixture is a 32% ...
  65. math

    1. 2(x - 3) = 2x a) one solution b) no solutions c) infinitely many solutions 2. 3(y - 3) = 2y - 9 + y a) one solution b) no solutions c) infinitely many solutions 3. 10x - 2 - 6x = 3x - 2 + x a) one solution b) no solutions c) infinitely many solutions 4. 4( x + 3) + 2x = x...
  66. MATH -- INFINATE SOLUTIONS?? HELP!!

    Can anyone help me solve this problem; 2x + 3 = 2x + 4 - 1 and explain why there are an infinite number of solutions? Thanks!!
  67. Algebra

    How many real number solutions does the equation have? 0 = -7x^2 + 6x + 3 one solution two solutions** no solution How many real number solutions does the equation have? 0 = 2x^2 - 20x + 50 one solution two solutions no solution**
  68. Math help asap!!!

    5(x – 9) = 5x no solution one solution infinite solutions –2(x – 1) = 2x – 2 infinite solutions one solution no solution
  69. math

    how many real number solutions does the equation have y = -4x^2 + 7x - 8 no solutions (is it this one) one solution two solutions infinitely many solutions
  70. Chemistry - buffers

    Two burettes are filled with solutions: one with 0,1OM CH3COOH solution, second with 0,15M CH3COONa. How many milliliters each solution will need to make 20mL of solution, which pH=4.85
  71. Math Algebra , high school

    A biologist has three salt solutions: some 5% solution, some 15% solution, and some 25% solution. She needs to mix some of each to get 50 liters of 20% solution. She wants to us twice as much of the 5% solution as the 15% solution. How much of each solution should she use? How...
  72. Math

    4(2x + 3) = 2(3x - 4) one solution infinite solutions * my answer* no solution 6 - a = 1/3(9a - 18) one solution * my answer* infinite solutions no solution 3(4x - 3) - 7x = 5x - 9 one solution infinite solutions *my answer* no solution 4(2x - 3) - 4x (answer all that apply) ...
  73. Math

    1. Tell whether the system has one solution infinitely many solutions or no solution. 6y=-5x+24 2.5x+3y=12 a. one solution b. infinitely many solutions*** c. no solution 2. Tell whether the system has one solution infinitely many solutions or no solution. x=-7y+34 x+7y=32 a. ...
  74. Chemistry

    You have 3.00 L of a 2.37 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq) called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M) of Na+ ions in solution C.
  75. Fractions

    A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of the third solution used...
  76. Math - urgent

    2. A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of the third solution ...
  77. Algebra 1

    Which cannot describe a system of linear equations? a) no solution b) exactly two solutions c) infinite solutions**** d) exactly one solution To be honest I think the answer is C. Please Help!
  78. Math

    How many real-number solutions does the equation have? –7x2 + 6x + 3 = 0 one solution two solutions*********** no solutions infinitely many solutions
  79. Science

    Three acids solutions have the following pH: Solution A: pH = 2 Solution B: pH = 5 Solution C: pH = 3 Which solution is made with the acid that has the smallest ionization constant?
  80. chemistry

    The densities of three solutions with known concentrations ( 20% , 50%, and 70%), and one unknown solution were determined. If the densities of 20%, 50% and 70% solutions are 0.69 and 0.58 and 0.49 g/mL, respectively, and the denisty of the unknown solution is 0.50 g/mL, what ...
  81. Math

    1)How many real number solutions does the equation have? -8x^2-8x-2=0 A) One Solution B) Two Solutions C) No solutions D) Infinitely many solutions If someone could help me with this that would be great since I am confused. Thank you!
  82. Math

    How many real number solutions does the equation have? y=3x^2-5x-5 A)one solution B)two solutions C)no solutions D)infinitely many solutions I can't figure this question out. Any help would be amazing.
  83. Algebra

    How many solutions does this system have? x-2y=2 y=-2x+5 a. infinitely many solutions b. no solutions*** c. two solutions d. one solution
  84. Math

    How many solutions does this system have? x-2y=2 y= -2x+5 a. infinitely many solutions b. no solutions c. two solutions d. one solution ******
  85. chemistry

    this is a lab i am working on and this is what is says: Solution A is mixed with water to produce solutions of varying concentration. These altered concentrations of solution A is added to a set amount of solution B and the reaction times are noted when the solutions are mixed...
  86. math

    two systems of equations are giving below for each system choosethe best description of its solution if applicable give solution x+4y=8 -x-4y= -8 choose which one this problem fit in 1)the system has no solution 2) the system has a unique solution (x,y)= or the system has a ...
  87. Math Help Plz fast

    13. Describe the number of solutions for the equation. 10(x-2)=10x A.) one solution B.) no solution C.) infinite solutions*** 14. Describe the number of solutions for the equation. -2(y-3)=2y-6 A.)one solution B.)no solution*** C.)infinite solutions 18. Solve b-9>20. I don'...
  88. Science

    5. You have made the following two solutions: X) hydrogen ion concentration = 1 x 10-5M Y) pH = 4 State which statements below are true and which are false: a. Solution X contains 1 x 10-9M hydroxide ions. b. Solution X contains more H+ ions than Solution Y. c. Solution Y ...
  89. pre calculus

    Create systems of equations in two variables that have (a) no solution, (b) one distinct solution, and (c) infinite solutions. Show that each system has the indicated number of solutions by using a graph or solving the system.
  90. Pre Calculus

    a biologist has three salt solutions: some 5% solution, some 15% solution, and some 25% solution. She needs to mix some of each to get 50 liters of 20% solution. She wants to use twice as much of the 5% solution as the 15% solution. How much of each solution should she use? I'...
  91. calculus

    A research chemist has two different salt water solutions. Solution 1 is 25% salt and solution 2 is 20% salt. She wants to have 1 liter of 22% solution. How much of each solution should she mix together to get the desired solution?
  92. Chemistry

    The densities of three solutions with known concentrations ( 20% , 50%, and 70%), and one unknown solution were determined. If the densities of 20%, 50% and 70% solutions are 0.69 and 0.58 and 0.49 g/mL, respectively, and the denisty of the unknown solution is 0.50 g/mL, what ...
  93. Chemistry

    Physical Developer (PD) is a set of solutions used to develop latent fingerprints on different porous and nonporous surfaces. It is often used to develop fingerprints on currency. Below are FBI recipes for PD. Solution 1 serves as a cleaning solution before using a mixture of ...
  94. Help

    Is there a website that will help me solve this? I can't find anything. I'm coming up with x=1/3 but I feel I'm doing it wrong. Find all real number solutions to (cubed root 3x-8)-1=0 If there is more than one solution, separate them with commas. If there is no solution, ...
  95. Grade 10 Math

    Write an equation that forms a system of equations with x + y = 4, so that the system has: a) No solution b) Infinitely many solutions c) One solution I know how to figure out if two linear systems have a solution, but I don't understand how you could figure out if just one ...
  96. Algebra

    How many real number solutions does the equation have? y=-4x^2+7x-8 A. no solutions B. one solution C. two solutions D. infinitely many solutions I think it is C..? How many real number solutions does the equation have? y=2x^2-20x+50 A. no solutions B. one solution C. two ...
  97. finite math

    Determine whether each system of linear equations has a)one and only one solution, b)infinitely many solutions, or c) no solution 2x-4y=5 3x +2y=6
  98. Math Check

    Hi! Can someone check these two answers? Thanks! Directions: Find the correct number of solutions for the following system of equations. 1.) 5x - 3y + 2z = 3 2x + 4y-z = 7 x - 11y + 4z = 3 2.) 2x + y- 3z = 4 4x + 2z = 10 -2x + 3y - 13z = -8 A.) One Solution B.) Infinitely Many...
  99. ALGEBRA

    The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 Equation 2 |2x + 1| + 4 = 3 Which statement is true about the solution to the two equations? Equation 1 and equation 2 have no solutions. Equation 1 has no solution and equation 2 has solutions x = 0, 1. The ...
  100. math

    Which statement concerning the equation x^2+2=x is true? Its discriminant is 0 , so it has no solution. Its discriminant is 0 , so it has one real solution. Its discriminant is -7, so it has two complex solutions. Its discriminant is -7, so its solutions are negative.
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