# solve using the quadratic formula 2x^2 +6x-3=0

55,423 results

1. ### 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.
2. ### 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.
3. ### math-calculus

solve equation |x^2-2x-6| using quadratic formula. i not get how to do this and it says quadratic formula.
4. ### 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
5. ### Math using Quadratic equation

The area of a square is 196cm2(squared), find the measure of one side. Thank you,, this is my assign. In math1, im using the formula A=s*s but i need to solve this using quadratic equation.
6. ### Math

Using the quadratic formula solve xsquared=2/3x Using the quadratic formula solve xsquared=2/3x x^2 - 2x/3 = 0 x = [+2/3+/-sqrt(2/3^2 - 4(1)0)]/2
7. ### 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 what to do next. I ...

9. ### Algebra 1

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

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

7.f(x)=2x^2-3x+1 13. f(x)=x^2-6x+1=0 *Solve for the zeros/roots of the following quadratic equations by using the quadratic formula* Any help please.....
12. ### algebra

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

Solve the following quadratic by either factoring or using the quadratic formula: 6x2 - 5x = 6 6x^2 -5x -6 = 0 (3x+2)*(2x-3) = 0 Take it from there
15. ### 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 first. For the ...
16. ### 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 first. For the ...
17. ### 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 +2x +4 if taking using...
18. ### 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. Finally, solve the ...
19. ### 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. Finally, solve the ...
20. ### Algebra

can show me how to do this with out just squaring 3x^(1/2) - x - 6 = 0 how do i do this and solve for x with out just squareing and using quadratic formula. I was never taught the proof of the quadratic formula and would like to know how to do with without squareing and if ...
21. ### 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 equation but how did they ...
22. ### 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.
23. ### i need help..algebra/math

solve by using the quadratic formula: x2 plus x minus 2 equal 0 I know the formula is a=1 b=1 c=2 I'm having trouble solving...please help.
24. ### math

1. solve by using the quadratic formula. 5x^2+x=3 2. solve by completing the square. x^2=5x+2 3.solve by using the square roots method. 5(x-2)^2=3
25. ### gr 10 math

Solve using the quadratic formula. a) x^2 - 7x + 12 = 0 a = 1 b = -7 x = -b +/- the sr of b^2 - 4ac /2a 7 +/- the sr of -7^2 - 4(1)(12) /2a 7 +/- the sr of -49 - 48 /2a 7 +/- the sr of -97 /2a 7 +/- 97 /2a -90/2=-45 -104/2= 54 The roots are -45 and 54. did i solve this correctly?

Determine the standard form of a quadratic function whose graph has a y intercept of 8 and a vertex at (-2,-4). The answer is f(x)= 3x^2 + 12x +8 but I can't figure out how to get the answer. Solve x^2 + x=6, by factoring. The answer is x=-3,2 but I can't figure out how to get...
27. ### Math

solve using the quadratic formula. 3x^2/4 - 1x/4 - 1/2 = 0
28. ### Algebra

solve using the quadratic formula 2x^2 +6x-3=0
29. ### math

Solve by using the quadratic formula x^2-4x-45=0
30. ### Math

Solve by using the quadratic formula: x^2=5x+2
31. ### Math

Solve by using the quadratic formula. x^2=5x+2
32. ### algebra II

Solve using the quadratic formula: x^2 - 3x - 5 = 0

34. ### Algebra

m^2-5m-14=0. Solve using quadratic formula. Thanks.

36. ### math help!!

1/x+2 + 1/X+4 =1 Solve by using quadratic formula.
37. ### Algebra

Solve for "x" using the quadratic formula: X^2-4x-21=0
38. ### algebra

solve t^2 + 3 = 6t using quadratic formula
39. ### Algebra help

7x^2=8x Solve using the quadratic formula
40. ### Algebra

Solve by using the quadratic formula 7x^2-5x=0

42. ### Algebra 1

how do I solve 5x^2+5x-60=0 using the quadratic formula?
43. ### ALGEBRA 1

How do I solve "-2n-8n+42=0" using the quadratic formula?
44. ### Algebra

Solve 3x^2+19x-14=0 using the quadratic formula
45. ### algebra 2

How would you solve 3x^2+8x-91=0 and 9r^2+4r+2=0 using the quadratic formula?
46. ### Algebra

How to solve y = -0.04x^2 + 1.3x + 56 using the quadratic formula?
47. ### Algebra 1

Solve 2x^2 + 7x = -8 using the Quadratic Formula. A: No solution?
48. ### Algebra 2

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

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

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

solve by using quadratic formula x^2+2x-35=0 i got x=10.85 or x=-12.85

53. ### Algebra

I am trying to solve the following using the Quadratic Formula but I am confused. Can you explain the steps? Solve (find all complex-number solutions): t^2 + 3 = 6t Thank you

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) x^2 - 350 = 0 C) x^2...
55. ### Algebra II, part 2

Part 2 of homework set. 6. Solve the quadratic using the quadratic formula. 2x^2+5x+9=0 7. Find the discriminant. Then determine the number and types of solutions. 2x^2+3x-18=0 8. Simplify Root -27 9. Simplify 8/(3+2i)
56. ### Math

how do you solve for y in the expression: x^3=y(y+3)? x^3=y^2 + 3y y^2+3y- x^3=0 Using the quadratic formula.. y= (-3+-sqrt(9+4x^3) )/2
57. ### Algebra

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

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

60. ### Math Help now !!!! Plz

Solve using the quadratic formula X^2-4x=21
61. ### algebra 2

x^2 - 3x + 5 = 0. solve using quadratic formula. show solution
62. ### math

Please solve these using the quadratic formula: 1. 3x^2-4(x-2)=0 2.a^2+2(a++5)=0 3.x^2-3(2x+3)=0 Thank you ^____^
63. ### Algebra 2

How do I solve this using the Quadratic formula and finding the determinant? 1. 5x-6=0 2. x+25=0
64. ### math

Using the quadratic formula; I have to solve 8(a-squared)-a+2=0 a=8, b=-1, c=2
65. ### 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 in the quadratic formula?
66. ### Math

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

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

Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula the 2 is to the second power a. X = 1 and X = 3/5 b. X = -1 and X = 1/5 c. X = 1 and X = - 2/5 d. X = 3 and X = - 1/3
69. ### math

Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula . the 2 is second power
70. ### Math

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

solve for x in the following expression using the quadratic formula 3x^2 + 29x - 8.5=0

74. ### 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 with a fence for your...

76. ### Math

x^2+√2x+1/2=0 Solve using the quadratic formula and use complex numbers.
77. ### 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 can just continue to ...
78. ### Math

What is a quadratic formula? how can i solve x^2 + 8x + 12 = 0 applying quadratic formula?
79. ### 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
80. ### College Algebra

Solve 2x(squared)-3x-2=0 using the quadratic formula. Can someone explain this to me please?
81. ### Math

Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula the 2 is second power can someone explain

83. ### Math

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

Solve 7⋅x = x2 - 6 by using the Quadratic Formula. Round to the nearest tenth.
85. ### Algebra 1 (Reiny)

Write each equation in standard form. Solve by using the Quadratic Formula. 1. -7 = x^2 2. x^2 - 16 = 0
86. ### 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?
87. ### algebra

Solve each quadratic by using the wuadratic formula and round the answer to the nearest hundredth, if possible. 1. x^2 = 9 2. 0 = 3x^2 - 8
88. ### math-calculus

using quadratic formula solve |x^2-2x-6| = 4. and answer have to be 1+-sqrt3, 1+-sqrt11 i just not get how to get this.
89. ### 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.

91. ### Algebra

Solve each equation using the quadratic formula. (Enter your answers as a comma-separated list.) x^2 -2x +10=0
92. ### math

Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary. 1.6x2 + 2x + 2.5 = 0
93. ### 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
94. ### 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 + 6x + 2 = 0
95. ### 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 real roots?
96. ### Help With Math

Using the quadratic formula to solve equations. -12^2 + 12 x-9 = -7x^2 10x^2 + 5x + 12 = 0 6x^2 + 12x = - 1 11x^2 - 7x -1 = 0 2x^2 -18x + 16 = 0 Can u show work to help me out
97. ### Algebra

Quadratic Formula Using +/- for plus or minus Using \/ radical sign *****************_________ Formula: -b +/- \/b^2-4ac ********____________________ *****************2a Equation: x^2 - 25 = 0 Books says answer is 5 and -5. I can get the 5. I do not get the -5.
98. ### 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