# 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.

(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

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

1/4x2

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