Use the quadratic formula to solve the equation. x^2-7x-6=0

65,401 results

  1. Algebra

    Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x² – 21 = –4x • 7, 3 • –7, 3 • 7, –3 • –7, –3

  2. algebra

    Solve the equation using the zero-product property. -9n(5n-5) a. -1/9, 1 b. 0,1***** c. -1/9,-1 d. 0,-1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2-6=x a. x=2,3 b. x=-2,3 ***** c. x=2,-3 d. x=-2,-3 How

  3. algebra 2

    a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a. factor the equation. b.

  5. math help how do i do this

    Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2

  6. algebra

    Use the quadratic formula to solve the equation. -4x^2-3x+2=0 Can someone please explain

  7. math

    Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. -3y^2 + y = -6

  8. math

    Use the quadratic formula to solve the equation -x^2 + 7x = 8

  10. math

    Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary. 1.6x2 + 2x + 2.5 = 0

  11. Algebra

    What method(s) would you choose to solve the equation? Explain your reasoning. 4x^2-48=0 a. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. Selected:b. Square roots; there is no x-term. c. Factoring; the

  12. Algebra

    −2y^2−6y+7=0 step 2 of 2 : Use the discriminant, b2−4ac, to determine the number of solutions of the given quadratic equation. Then solve the quadratic equation using the formula y=−b±sqrt(b2−4ac)/√2a.

  13. math help plsss plsss

    Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2

  15. algebra

    use the quadratic formula to solve the equation 4x^2-7x-2=0

  16. algebra

    Solve this quadratic equation using the quadratic formula. x^2 + 8x - 5 = 0

  17. Algebra2

    A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why. a- factor the equation b-

  18. Algebra

    Solve the quadratic equation. 3x^2-15x+18=0 I know that the formula to quadratic equation is x=-b+and-(square root)b^2-4ac divided by 2a. I know that a=3, b=-15 and c=18, then subsitute in and get two answers, my problem is that I keep getting an answer

  20. College Algebra

    Use the quadratic formula to solve the equation: 2x^2=-5x-7

  21. algebra

    Use the quadratic formula to solve the equation. x^2-7x-6=0

  22. Math

    Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= -27

  23. algebra 1

    Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 +

  25. algebra

    Use the quadratic formula to solve the equation x^2-5x=-10

  26. algebra

    Solve equation by using the quadratic formula -3x2-2x-5=0

  27. Algebra 1 (Reiny)

    Write each equation in standard form. Solve by using the Quadratic Formula. 1. -7 = x^2 2. x^2 - 16 = 0

  28. quadratic equations

    can you solve the equation using the quadratic formula x2 + 3x = 7? Explain and provide an exact answer.

  30. Algebra 1

    Which method is the best method for solving the equation 8x^2-123x+3=0 square roots factoring graphing quadratic formula my answer is quadratic formula

  31. math help

    write the quadratic equation whose roots are -4 and -5 and whose leading coefficient is 5 use the letter x to represent the variable. use the quadratic formula to solve for x 4x^2-9x+3=0

  32. Algebra

    Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a comma-separated list.) (x+2)^2 + (x-7)(x-2)=16

  33. math

    Solve the equation using the quadratic formula (if necessary, round your result to three significant digits and decide which number is smaller or larger x value). 2x^2 + x − 7 = 0 I used the quadratic formula and I got -2.13 as a smaller x-value and 1.6

  35. Algebra

    Explain how to solve a quadratic equation using the quadratic formula.

  36. Algebra 1

    How do I solve this quadratic equation using the quadratic formula "8a(squared)-a+2=0"

  37. math,algebra

    can someone help me out factor out this 0=16t^2-122t+180 i have so far this but the last one i am not sure 8(2t^2-14t + ?) you need to use the quadratic formula: -b(+or-)[sqrt(b^2-4ac)/2a] so you are saying that i don't have to factor it out any further i

  38. Math

    Solve for the zeros of the function using the quadratic formula. 3x^2=-4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator.

  40. math

    First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational numbers, give exact solutions and approximate solutions

  41. algebra 1

    Use the Quadratic Formula to solve the equation: 5x^2 + 9x - 2=0 -2,1/5?

  42. algebra

    Solve equation using quadratic formula x^2+4x+3=0 is answer 3,1 ?

  43. Algebra

    I really need help on some sample work. Just need to check my answers: 1. Describe how the graph of y=-x^2+1 differs from y=x^2. Then find the axis of symmetry and the vertex 2. Graph the quadratic equation y=x^2+x-2. Identify the axis of symmetry and the

  45. Algebra

    I really need help on some sample work. Just need to check my answers: 1. Describe how the graph of y=-x^2+1 differs from y=x^2. Then find the axis of symmetry and the vertex 2. Graph the quadratic equation y=x^2+x-2. Identify the axis of symmetry and the

  46. algebra

    0. Tell your classmates about your pet to set up the scenario for fencing a rectangle in your yard. 1. You MUST start by choosing an amount of area that you want to fence in for your pet and this MUST be stated first. What amount of area are you enclosing

  47. algebra

    Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to find two numbers that =24 (2 times 12) and have a sum of 6. But I can't think of any! Can someone please help? Use the quadratic. And this problem has no real answers, they are imaginary.

  48. Math

    Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

  50. math

    15t^2+7t=2 The quadratic formula tells you that the solutions are: t = [-b +/-sqrt (b^2 - 4ac]/ (2a) In this case, a = 15, b = 7 and c = -2 solve the equation for t. What values for t will you get when you substitute the values you listed for a, b, and c

  51. algebra

    There are three forms of a quadratic function: standard, vertex, and intercept. Which form is best for each activity and explain why you think so. 14. Factor the equation 15. Graph the parabola 16. Identify the different properties of the graph 17. solve

  52. Algebra 2

    How do I solve the quadratic equation: 3x^2-x+4 ? Using the quadratic formula.

  53. Algebra

    Find two consecutive positive integers such that the sum of the square is 85..(show your work) If X is the first integer, then X+1 is the next; therefore, the sum of those squares will be 85. X^2 + (X+1)^2 = 85 Solve for X, then add 1 to it for the second

  55. Algebra II

    1)What method(s) would you choose to solve the equation: x2 + 2x - 6 = 0 A. Square roots; there is no x-term. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation is easily factored.

  56. Math

    The surface area of a soft drink with cylindrical shape is given by a formula SA=2×pi×r(r+h), where r cm is radius of can and h cm is the height. The height of a can of wood finish is 5 cm and its surface area is 250cm^2 Substitute values into formula to

  57. math

    use the quadratic formula to solve this equation. 4x^2-8x+3=5 use the formula x=-b + or - the sqrt of b^2-4ac/2a yes, the 2a divides into all. Memorize it.

  58. Algebra

    Solve by using the quadratic formula. 3x^2=11x+4. Look up the formula if you don't know it already. In this case a = 3, b = -11 and c = -4. You get that by rewriting the equation in the standard form ax^2 + bx + c = 0 , where a, b, and c are constants.

  60. College Algebra

    Solve the following equation in the complex number system x^4+x^3+4x^2+10x-60=0 College Algebra - Reiny, Monday, January 2, 2012 at 11:49pm hint x = 2 and x = -3 are roots so either do long division by x-2 and x+3 to get a quadratic or do it by synthetic

  61. Algebra 1 (Step-by-Step)

    Will someone explain how to solve this? Write each equation in standard form. Solve by using the Quadratic Formula. 1. -7 = x^2

  62. Algebra 2

    Solve each equation using the Quadratic Formula. 2x^2+3=7x

  63. Semester 2-Algebra 1-Unit 3-Sample Work

    Use the quadratic formula to solve the equation x^2-6x-2=0

  65. Math

    Use the quadratic formula to solve the equation. -x^2 + 5x = 3

  66. Algebra

    I need help with using the quadratic formula to solve this equation: 2^x2-2x = 8

  67. algebra 1

    Use the Quadratic Formula to solve the equation: 5x^2 - 6x - 8=0 -.51,1.71?

  68. College Math II

    Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am having problems using the quadratic formula to get the right answer. Can someone show me the steps that I use? Thanks.

  70. Math

    how do i solve this equation with out using the quadratic formula: 5x^2 +18x +11 = 0

  71. Math

    Using the quadratic formula to solve for x in the equation x2 = 7x + 8 results in what value(s)?

  72. Algebra2

    Find the polynomials roots to each of the following problems: #1) x^2+3x+1 #2) x^2+4x+3=0 #3) -2x^2+4x-5 #3 is not an equation. Dod you omit "= 0" at the end? #2 can be factored into (x+1)(x+3) = 0, so the roots are x=-1 and -3. #1 Use the quadratic

  73. Math

    1)Write a quadratic equation with integer coefficients that has -4+7i(Radical 3) and -4-7i(Radical 3) as its roots. 2) Solve your answer to part 1 using the quadratic formula verifying your answer

  75. math

    A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula D: Do the results in A, B, differ from each other? Why or Why not?

  76. Math

    Use the quadratic formula to solve each of the following quadratic equations... 1. 2x^2-5x=3 2. 3x^2-2x+1=0 Rearrange the equation in quadratic formula form. 2x^2 -5x -3 = 0 Then use the formula. Tell me what you don't understand about it if you don't know

  77. Algebra

    I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

  78. Algebra

    I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

  80. algebra II

    I'm quite clueless as to how to solve this. I know the quadratic equation but am not sure how to get this equation into the format to plug in to the quadratic... Solve the quadratic equation using the formula [1/(1+x)]-[1/(3-x)]=(6/35) Show your work

  81. math

    (4.35E-2 - x)(7.56E-2 -x ) ============================ (0.324 + 2x)2 Rearrange to get an expression of the form ax2 + bx + c = 0 and use the quadratic formula (solve for x. This gives: x = 1.05E-2, 0.143 basically i understand they use the quadratic

  82. Math

    Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

  83. algebra

    which quadratic formula would be used to solve the following quadratic equation? 4x^2 - 5x = -2 can you show me the correct answer and how do it please

  85. algebra

    Use the Quadratic Formula to solve the quadratic equation. (Enter your answers as a comma-separated list.) x2 − 10x + 19 = 0

  86. Math

    Solve the quadratic equation using the quadratic formula, x^2-3x+2=0.

  87. math-calculus

    solve equation |x^2-2x-6| using quadratic formula. i not get how to do this and it says quadratic formula.

  88. 8th Grade Algebra

    You know how to solve quadratic equations using algebra, graphs and the quadratic formula. Sometimes one method of solving is more convenient than another method. Describe how you would solve each equation. Give reasons for you answers. A) 16x^2 = 1600 B)

  90. Math Help

    Consider the quadratic equation (a) Solve the equation using the quadratic formula, expressing your answer in terms of k. (b) What condition on k will assure that the equation has exactly one solution? (c) What condition on k will assure that there are two

  91. Math

    -x^3 + 1.85x^2 - x +0.15 = 0 how can you solve for x? An exact solution or a numerical solution? Exact solutions can be obtained as follows: x^3 - 1.85x^2 + x - 0.15 = 0 First get rid of the quadratic term by substituting: x = (y + 1.85/3) You then obtain

  92. algebra

    Solve the quadratic equation 2x to the 2nd power -3x-2=0using the quadratic formula. Read the information in the assignment list to learn more about how to type math symbols in MS Word, such as the square root.

  93. physics repost

    I am still trying to solve for H in this equation but I am still lost MgH = (1/2)*k*(H-2-10)^2 + Mg*2 I was told to expand the square on the right, gather terms, put it in the standard quadratic form, and use the quadratic formula, but I don't know how.

  95. physics repost

    I am still trying to solve for H in this equation but I am still lost MgH = (1/2)*k*(H-2-10)^2 + Mg*2 I was told to expand the square on the right, gather terms, put it in the standard quadratic form, and use the quadratic formula, but I don't know how.

  96. Algebra 2

    Solve each equation using the Quadratic Formula. x^2+16=8x

  97. algebra

    use the quadratic formula to solve the equation 2x^2-3x=-6

  98. Algebra

    Use the Quadratic formula to solve the equation -4x^2-3x+2=0

  100. math help plz

    Use the quadratic formula to solve the equation: 0 = x2 - 5x + 6

  101. Algebra 2

    Solve each equation using the Quadratic Formula. 3x^2+5x=2

  102. math

    (4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (y^2-2y)/2 8 - 2y^2 = y^2 - 2y 3y^2 - 2y - 8 = 0 (keep the above equation in mind) quadratic formula: (-b +/- sqrt(b^2 - 4ac))/2a now solve by plugging in the appropriate numbers and

  103. math

    use the quadratic formula to solve the equation: x^2+10x-10=0

  105. Algebra 1

    Use the quadratic formula to find the x value that will solve the equation 2x^2-3x+10=0

  106. Math

    Solve the equation |x^2 - 2x - 6| = 4 algebraiclly, using the quadratic formula

  107. Math

    A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula

  108. Algebra 2

    PLEASE HELP!!!!!!!!!!!!!!!!!! Solve each equation using the Quadratic Formula. x^2+12x+35=0

  110. Math ,help

    how can i simplify this more its for the following problem: Problem #22 solve by using the quadratic formual. 5x^2-4x+1=0 this is where i am but i do not know how to go further. x = (4 (+/-) sqrt (-4))/(10) Problem #23 Solve by completing the square.

  111. math

    Use quadratic formula to solve each equation 3k^2+6=6 I get 3/2 but I can't seem to get the other half of the equation such as x=3.7 or .26 etc...

  112. algebra 2 pls help

    A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task as listed below and explain why. a. Factor the equation b.

  113. algebra 2

    A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why a. factor the equation b.

  115. pre-calculus 11

    abs x^2/2 -1 =x+3 solve algebraically so if I divide through by 2 i get x^2 -2= 2x+3 simplifying x^2-2x-5 =0 solve by quadratic formula to get =3.449 and -0.445 both of which are extraneous roots if I take negative then I get -x^2 +2=2x+6 simplify to x^2

  116. Math

    Solve the following quadratic equation(as exact values) using the quadratic formula. x^2-10x-15=0 I got 5+-2sqrt10/2. ^ Sorry hard to write it out. But basically there is a 5 there, the negative sign is supposed to be under the positive sign, then there is

  117. Algebra

    I am still having trouble solving this problem. Use the quadratic formula to solve this equation: 4k(k+13)=13

  118. algebra

    2x^2-2x-1=0 How do I use the quadratic formula to solve this because I am totally new at this and need help? Please show me the steps for this equation,so I will be able to do it own my own. Thank you.

  120. Maths

    How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0 I thought you would use the quadratic formula somehow, but I'm not sure

  121. Algebra 1 Answer Evaluation

    Write each equation in standard form. Solve by using the Quadratic Formula. 1. -7 = x^2 A: ? 2. x^2 - 16 = 0 A: x = 4 or x = -4.

  122. Chemistry

    What is the pH of a 1.0E-8 M solution of HCl? Please note that you cannot simply add the contribution of H+ ions from the autoproteolysis of water and the contribution from the dissociation of HCl. You will need to use the quadratic equation to solve this

  123. Algebra

    For this equation x^(2) + x + 2 which you can't factor but then you can use the quadratic formula but than why is the answer no real solutions when I can use the quadratic formula?

  125. Math

    Could someone help me with this equation? Use the quadratic formula to solve the equation... 2x^2 - x = -10

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