Solve the quadratic equation. 4x^2-8x+3=5 4x² - 8x +3 - 5 = 0 4x²- 8x - 2 = 0 2x²- 4x -1 = 0 this is as far as I got. I am stuck and do not know what to

55,149 results
  1. Math

    Prove 3(x+1)(x+7)-(2x+5)² is never positive So, 3(x+1)(x+7)-(2x+5)(2x+5) =3(x²+8x+7)-(4x²+20x+25) =3x²+24x+21-4x²-20x-25 =-x²+4x-4

  2. Algebra

    Please help.! 1) Given the following three points, find by hand the quadratic function they represent. (0,6), (2,16), (3, 33) A. f(x)=4x2−3x+6 B. f(x)=4x2+3x+6 C. f(x)=−4x2−3x+6 D. f(x)=−4x2+21x+6 2) Given the following three points, find by hand

  3. Maths

    Find the domain of the function using interval √x/(4x²+3x-1) I solved 4x²+3x-1=0 I got (1/4,-1) but idk what to do

  4. Math

    First, give the technology formula for the given function and then use technology to evaluate the function for the given values of x. (Round your answers to four decimal places.) r(x) = 4x2 + 1/4x2 − 1; x = −1, 0, 1, ..., 9 a)(4x^2 − 1)/(4x^2 + 1)

  5. Algebra

    Use quadratic regression to find the equation of the parabola going through these 3 points. (-3,88), (2,-27), (4,-17) y= 4x2-19x+?

  6. Math

    f(x) = 4x2 - 7x, g(x) = x2 - 3x - 28 Find f/g.

  7. JAD

    (4x² - 2xy + y²) + (- 8x² -9xy – y²) + (x² + xy -8y²)

  8. algebra

    What is the discriminant of the polynomial below? 4x2 + 4x + 1 A. 0 B. -4 C. -12 D. 32

  9. calculus

    An equation of the line tangent to the graph of f(x) = (4x2 - 8x + 3)4 at the point where x = 1 is:

  10. algebra 2

    y = 4x2 - 12x + 9

  11. Algebra 1

    Solve the quadratic equation by completing the square. 4x2 + 2x - 7 = 0 A) x = 1 ± square root of 29/4 B) x = −1 ± square root of 29/4 C) x = −1 ± square root of 29/8 D) x = −1 ± square root of 29/16 Please help me!

  12. MATH

    Draw the graph of the equation 4x²-6x+3 using the -2≤x≤3 use a scale of 2cm to 1unit on the x-axis, 1cm to 4units in the y-axis. Find the graphfind; (a) minimum value of y (b) The roots of the equation 4x²-6x-3=0 (c) The value of x when y=5 (d) The

  13. Algebra

    What are the solutions of the quadratic equation below? 4x2 - 30x + 45 = 0

  14. algebra

    Given the following three points, find by hand the quadratic function they represent. (0,6), (2,16), (3, 33) - f(x)=−4x2−3x+6 - f(x)=4x2+3x+6 - f(x)=−4x2+21x+6 - f(x)=4x2−3x+6 I am struggling a lot with this one. But i think its A

  15. Pre cal

    Fine a third degree polynomial function f(x) with real coefficients that has 4 and 2i are zeros and such that f(-1) =-50 4 21 -2i (x-4)(x-2i)(x+2i) (x-4)(x2+4) x3-16+4x-4x2 (x3-4x2+4x-16) -50=a(-1-4-4-16) -50=.25 a=2 Not understanding, please help

  16. pre cal

    Factor completely: 3x^2(4x2 + 1)^8 + 64x^4(4x2 + 1)^7.

  17. algebra

    The equation f(x) = 4x2 − 16x + 9 represents a parabola. What is the vertex of the parabola? (2, −7) ( −2, 57) (4, 9) ( −4, −137)

  18. Geometry

    Which equation has exactly one real solution? A 4x^2– 12x– 9 = 0 B 4x^2+ 12x+ 9 = 0 C 4x^2– 6x– 9 = 0 D 4x2+ 6x+ 9 = 0 Please teach me how to do this

  19. maths

    Write the system as a matrix equation and solve using inverses. x1 + 2x2 - x3 = -3 -2x1 - x2 + 3x3 = 0 -4x1 + 4x2 - x3 = -12 A. x1 = 2, x2 = -3, x3 = 1 B. x1 = 1, x2 = -2, x3 = 1 C. x1 = 1, x2 = -2, x3 = 0 D. x1 = 1, x2 = -3, x3 = 1

  20. Algebra

    Directions: Find the prime factors of the polynomials 1. a. 2a2 - 2b2 b. 6x2 - 6y2 c. 4x2 - 4 d. ax2 - ay2 e. cm2 - cn2 2. f. st2 - s g. 2x2 - 18 h. 2x2 - 32 i. 3x2 - 27y2 j. 18m2 - 8 3. k. 12a2 - 27b2 l. 63c2 - 7 m. x3 - 4x n. y3 - 25y o. z3 - z 4. p. 4c3

  21. Algebra 2

    Did I solve these right? 1. f(x)= -3x + 1 g(x)= -4x^2 + x + 2 Find g(f(x) ) -4(-3x+1)^2+(-3x+1)+2 -4(-3x+1)^2-3x+1+2 3-3x-4(-3x+1)^2 3-3x-4+24x-36x^2 =21x-36^2-1 2.f(x)= -2x + 1 g(x)= -3x^2 -x -1 Find (g /f)(x) -3x^2-x-1/-2x+1 3. f(x)=-x +2 g(x)= -4x2 + x

  22. calculus

    Consider the function below. f(x) = 4x2 - 5x (a) Find f '(2). (b) Use the answer in part (a) to find an equation of the tangent line to the parabola y = 4x2 - 5x at the point (2, 6). y =

  23. algebra

    2. 2x2+ 8 – 4x + 3x – 6x2 + 7 (1 point) –8x2 – 7x + 15****** –4x2 – x + 15 4x2 + x + 15 8x2+ 7x + 15 3. 4x2+ 8x – 11x + 6 – 5x2+ 2 (1 point) –x2 – 3x + 8 –x2 + 3x + 8****** x2 – 3x + 8 x2+ 3x + 8

  24. maths

    Using the digits 1, 2, 3 & 4 each once only, and as many +, -, x, / and brackets as you need, try to make as many different numbers as you can, starting at 0, 1, 2 .... Which is the first number that you cannot make? My answer is 3. Which is the largest

  25. Algebra

    Which of the following rewrites shows the correct process for completing the​ square? A- 4x2+9x+5=0 rewritten as 4x2+9x+814=−5+814 B- 3x2−6x−4=0 rewritten as x2−2x+1=4+1 C- 4x2+12x+7=0 rewritten as x2+3x+94=−74+94 D- 2x2−8x−9=0 rewritten as

  26. Math

    Which of the following ordered pairs is a solution of the equation y = -4x². Can someone help me solve it. Could you guys also explain why that answer is. Here are the options/Answers: (-2,16) (1, -8) (0,-4) (2,-16

  27. algebra

    Please solve 4x² + 8x + 16 = 0 and show steps. Confused..

  28. Algebra 2

    Operations with Complex Numbers Simplify. 1. sqrt(-144) 2. sqrt(-64x^4) 3. sqrt(-13)*sqrt(-26) 4. (-2i)(-6i)(4i) 5. i13 6. i38 7. (5 – 2i) + (4 + 4i) 8. (3 – 4i) – (1 – 4i) 9. (3 + 4i)(3 – 4i) 10. (6 – 2i)(1 + i) 11. (4i)/(3+i) 12. (10+i)/(4-i)

  29. Math

    Use the simplex meth to solve the linear programming problem Maximize z = 8x1 + 2x2 Subject to: 4x1 + 3x2 < 11 X1 + 4x2 < 7 With x1 > 0, x2> 0

  30. math,help

    this is from another section one of the problems can someone help me. dierections: use the simplex method to solve each linear programming problem. maximize z = 12x1 +15x2 +5x3 subject to: 2x1+2x2+x3 =0,x3>0

  31. math

    Simplify: (4x + 5)(4x2 + x - 4)

  32. algebra

    find the x-intercepts for the function f(x)= 4x2 - 4

  33. Pre-algebra

    Add or subtract. (4x2 – 2x – 1) – (–3x3 + 2) A. –3x3 + 4x2 – 2x + 1 B. –3x3 + 4x2 – 2x – 3 C. 3x3 + 4x2 – 2x + 1 D. 3x3 + 4x2 – 2x – 3

  34. Maths

    f:x -> (4x²-8x-21)/(x²-1) (a) Analyse (b) Sketch I'm struggling on (a) so I can't do (b) Here are my ideas/what I've got so far: (a)Domain, x is a set of real numbers; x can not equal 1 Asymptotes x=1, y=? I think you have to divide here but i can't

  35. Math

    Solving quadratic equations by graphing? 3. x2-4x + 6 = 0 4. x2-4x-1=0 5. 4x2-12x + 3 = 0 6. x2-2x-4=0

  36. math

    Is f(x)=4x2−3 a one-to-one function on the domain (−∞,∞)? Options: -No, f(x)=4x2−3 is not a one-to-one function on (−∞,∞) because there is an output value that has more than one corresponding input value. -Yes, f(x)=4x2−3 is a one-to-one

  37. math

    Consider the polynomial p(x)=32x5y−2xy5. Part A: What is the complete factorization of p(x)=32x5y−2xy5 over the integers? Part B: What methods are used to factor p(x)=32x^5y−2xy^5? Select one answer for Part A and select all answers that apply for

  38. algebra

    Please solve 4x² + 8x + 16 = 0 and show steps. Confused..

  39. Algebra

    Find the constant of variation for the quadratic variation. 6y = 4x2 A. 4/9 B. 2/3 C. -2 D. 3/2

  40. Algebra 2

    Hey, I just have two questions, Thanks. 1. Find the exact solutions of x² - (y - 6)² = 36 and y = -x² 2. Solve the system,4x² + y² = 20 and y = 4x.

  41. Mason

    solve each of the following equations by the square root method and show your work 4x²-20=0

  42. Calculus

    Which of the following is the general solution of the differential equation dy/dx = 2x/y? y2 = x2 + C y2 = 2x2 + C

  43. 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

  44. linear algebra

    If possible, solve the following linear systems by Cramer's rule. 2x1 + 4x2 + 6x3 = 14 x1 + 2x3 = 0 2x1 + 3x2 − x3 = 30

  45. 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

  46. algebra 2

    Factor x3 4x2 3x + 18 = 0, given that 3 is a zero.

  47. math

    f(x)=(2x-3) (gof)(x)=4x2-16x+18 g(x)...?

  48. algebra

    Find the sum: (x2 + 2x +1) + (4x2 + 5x + 3)

  49. math

    14) Factor each of the following expressions a) 9x2 – 3x b) 4x2 – 9

  50. math

    for what value of m, x4+4x2+m+8/x2+4/x4 is a complete square where x is not equal to 0

  51. Math

    For what real value of x the following inequality holds: (4x²)/[1 - √(1 + 2x)]² < 2x + 9 ?

  52. math

    List the coefficients of the given polynomial: -x3 – 4x2 + 3x – 6 My answer was going to be: -1, -4, 3, -6

  53. Algebra

    1. What polynomial has a graph that passes through the given points? (-2, 2) (-1, -1) (1, 5) (3, 67) A. y = -x3 + 4x2 + 2x - 2 B. y = x3 + 4x2 + 2x - 2 C. y = x4 + 4x3 + 2x2 - 2x D. y = x3 - 4x2 - 2x - 2 B? 2. Write -2x 2(-5x 2 +4x 3) in standard form. A.

  54. math

    -5(3x - 7) Sorry I meant this one:-4x2(3x2 - x + 1) *Your supposed to do the FOIL Method! -12x4 + 4x3 - 4x2

  55. Math

    Using the digits 1, 2, 3 & 4 each once only, and as many +, -, x, / and brackets as you need, try to make as many different numbers as you can, starting at 0, 1, 2 .... Which is the first number that you cannot make? My answer is 3. Which is the largest

  56. Maths

    Solve the equation 4x2+x+10=0

  57. Algebra

    Below is a "complete the square problem" from a math help site on the internet. This is the original problem. 4x2 – 2x – 5 = 0 Move the loose number over to the other side. 4x2 – 2x = 5 Divide through by whatever is multiplied on the squared term.

  58. Algebra

    For questions 2 and 3, simplify each polynomial. 2x2 + 8 – 4x + 3x – 6x2 + 7 A. –8x2 – 7x + 15 B. –4x2 – x + 15 C. 4x2 + x + 15 ** D. 8x2 + 7x + 15

  59. Algebra

    Solve the quadratic equation. 4x^2-8x+3=5 4x² - 8x +3 - 5 = 0 4x²- 8x - 2 = 0 2x²- 4x -1 = 0 this is as far as I got. I am stuck and do not know what to do next can some one please help? divide by two: x²- 2x -1/2 = 0 Now add 1.5 to each side to

  60. algebra

    factor the expression 4xsquared+35x+24 my answer: (4x+3)(x-8) 4x2 +35x+24= 24 = 2x12 24 = 4x6 24 = 8x3***** (4x+3)(X+8) 4X2 + 3X + 32X +24 + 4XSQ. + 35X + 24

  61. Algebra

    use factoring to solve the equation 4x²-23x=6 I think the answer is x=-1/4,x=6 Just want to make sure that's right

  62. math

    how to solve this equation by inserting the brackets to make it a true statement -20+4x2+7-35 = -19

  63. Math

    How do I mutliply the following; (4x2+3x-3)(4x2+3x-3)

  64. math

    Consider the polynomial p(x)=7x3+4x2−112x−64. Part A: What is the complete factorization of p(x)=7x3+4x2−112x−64 over the integers? Part B: What methods are used to factor p(x)=7x3+4x2−112x−64? Select one answer for Part A and select all

  65. Math

    First, give the technology formula for the given function and then use technology to evaluate the function for the given values of x. (Round your answers to four decimal places.) r(x) = 4x2 + 1/4x2 − 1; x = −1, 0, 1, ..., 9 f(6)= f(7)= For f(6), I got

  66. ALGEBRA

    Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x2 = 19x + 5 x = x =

  67. ALGEBRA

    Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x2 = 19x + 5 x = x =

  68. algebra 1

    Can anyone help me with these questions? Please 1. ac - bc + ad - bd 2. xy - 3x - 8y + 24 3. 4x2 + 20x + 5y +xy 4. 48x2y + 20xz +12xy + 5z is the 4x2 4 times 2 or 4x to the power of two or 4 times x times 2? same question with 48x2y. its to the 2nd power

  69. Math - Algebra

    Simplify and solve for x=2 and y=5. Please remember to group like terms. 1. 3x - 2y + 4x -3y 2. y + x - y - x 1. 3x2 - 2x5 + 4x2 - 3x5 6 - 10 + 8 - 15 2. 5+2-5-2 7-5+2 yah i think that's how to solve it, basically sub in the x and ys and solve

  70. MATH- PLEASE HELP

    Solve the compound in equality. I don't know how 5>-3x + 4 or 9 to -4x2. THANK YOU!!!

  71. algebra

    Please solve 4x² + 8x + 16 = 0 and show steps. Confused..

  72. Math for Trish To Help Me With

    Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a – f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x^2 - 7x + 10 d.) 2x^2 - 9x – 18 e.) 2ax + 6bx + ay + 3by f.) 6x^2 + 12x – 48

  73. math

    solve each of the following equations by the square root method and show your work 4x²-20=0

  74. math

    Consider the polynomial p(x)=8x3+12x2+2x+3. Part A: What is the correct factorization of p(x)=8x3+12x2+2x+3 over the integers? Part B: What method is used to factor p(x)=8x3+12x2+2x+3? Select one answer for Part A and select one answer for Part B. B:

  75. Algebra

    Solve the system of equations by an algebraic method. Leave answer in exact form. 4x² - 7y² = 21 x² + 2y² = 99

  76. Algebra2

    Simplify: 1.SquareRoot(-144) 2.SquareRoot(-64x^4) 3.SquareRoot(-13)*SquareRoot(-26) 4.(-2i)(-6i)(4i) 5. i^13 6. i3^8 7.(5 – 2i) + (4 + 4i) 8.(3 – 4i) – (1 – 4i) 9.(3 + 4i)(3 – 4i) 10.(6 – 2i)(1 + i) 11. (4i)/(3+i) 12. (10+i)/(4-i) 13. (-5 +

  77. Algebra 2

    Two Olympic swimmers, Ryan and Michael, create unique ripple waves in the water. The function created by Ryan is f(x) = 4x2 + 7. The function created by Michael is f(x) = 4x2 - 5x + 3. Describe to Ryan and Michael, using complete sentences, which operation

  78. Math

    How would I solve x2+3x+1/4 into standard form? Would I multiply everything by 4 to cancel out the 1/4 so it will cancel it. Giving me 4x2+12+1 then factoring out

  79. Algebra

    Please help I can't figure out these two. Express f(x) in the form a(x − h)2 + k. f(x) = −4x2 + 24x − 9 Find the standard equation of a parabola that has a vertical axis and satisfies the given conditions. vertex (0, −7), passing through (3, 38)

  80. linear

    If possible, solve the following linear systems by Cramer's rule. 2x1 + 4x2 + 6x3 = 14 x1 + 2x3 = 0 2x1 + 3x2 − x3 = 30 i am having trouble with this one

  81. algebra

    Put the equation in the form ax2 + bx + c = 0. Enter exponents using the caret ( ^ ). For example, you would enter 4x2 as 4x^2. 4x^2+5x=(3x-1)^2-3x^2

  82. algebra

    Put the equation in the form ax2 + bx + c = 0. Enter exponents using the caret ( ^ ). For example, you would enter 4x2 as 4x^2. 8-2x2=(x+2)2-7

  83. Algebra

    Xy=4 4x2+y2=20

  84. math

    4x-2=10 4x2-2=10 2

  85. algebra

    1/4x2

  86. math, solving roots

    4x²-25=0

  87. Math

    Find the following values if: f(x) = 3x - 2 and g(x) = 4x2 + 5 c) f(-1) = d) g(-3) = e) f(5) - g(2) =

  88. math

    Multiply 3x + 3 by -4x2 + 4x – 2 (Points : 20)

  89. Calculus

    1. Evaluate the following integrals (a) 􏰀 4x2 +6x−12 / x3 − 4x dx

  90. need help

    factor completely 4x2^-8x

  91. math

    4x2.25 +1.95x3+6x.29+6x.89+11x.39+3x.39=

  92. calculus

    Factor and solve for x 1) x^4 - 9x^2> 0 2) 4x2^x - x^3 2^x

  93. math

    mathematical expression of: 1.) 75-5 2.) 14x(3+4) 3.) 3x(11+6) 4.) 1+(6+8) 5.) 20+5-80 6.) 4x2+5

  94. maths

    the solution set for the following 1.X3+x2-6x-10=0 2.2x2-4x-4=0 3.x4-x3-4x2+x+1=0

  95. Math

    Divide as indicated. (-2x5 - x3 + 4x2 + 58x - 20) ÷ (x2 - 5)

  96. algebra

    Find the smaller solution for 4x2 − 78 = 2

  97. Math

    Graph 4x2 + y2 = 9. What are its lines of symmetry?

  98. math

    for what value of m, x4+4x2+m+8/x2+4/x4 is a complete square where x is not equal to 0

  99. math

    arrange the terms in descending order. 5 - 4x2 + x3 - 6x

  100. math

    Find the vertex of the parabola. y = -4x2 - 16x - 11

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