352 Answered Questions for the topic Quadratic Formula

Quadratic Formula Solve Equation Foil Method

02/09/14

6x2+8=20x-8 the 6x is squared
the 6x is squared. I know the answer is 2,4/3 but i am unsure how to write it out. please help. thank you 
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02/03/14

Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve probl
Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve problems? If yes, explain how and why; if... more
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Quadratic Formula

01/28/14

3x^2+28x+16=14 solve the quadratic
Use the quadratic formula to solve the quadratic
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Quadratic Formula Trigonometry Trig Tangent

01/06/14

Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0
This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
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Quadratic Formula Math Trigonometry Math Help

01/05/14

Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0
This is for my trig class, thanks for the help!
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Quadratic Formula Math Trigonometry Math Help

01/03/14

Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0
This is for my trig class. Thanks for the help!
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Expert Answers •3
Quadratic Formula

12/15/13

Need help bad
Select the approximate values of x that are solutions to f(x) = 0, where f(x)=-8x^2 +9x+5. A. (-1.60,1.80) B. (-8,9) C. (-1.13,-0.63) D. (-0.41,1.53) I believe the answer is A. My math partner... more
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Quadratic Formula

12/15/13

I need to check my answer on this practice problem
Solve for x in the equation   x^2 -7x-8=0   A. (-1,-8) B. (1,-8) C. (-1,8) D. (1,8)   I think the answer is C.
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Quadratic Formula

12/15/13

I need to check my answer for this practice problem.
Select the approximate values of x that are solutions to f(x) = 0, where f(x)=-8x^2 +9x+5.A. (-1.60,1.80)B. (-8,9)C. (-1.13,-0.63)D. (-0.41,1.53)   I believe the answer is A. My math partner... more
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Quadratic Formula

12/15/13

I need to check my answer for practice problems for up coming final
Select the approximate values of x that are solutions to f(x)=0, where f(x)=-9x^2+5x+7A. (1.20,-0.65)B. (-9,5)C. (-0.56,-0.78)D. (-1.29,0.71)   I believe the answer is D. This is not my final I... more
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Quadratic Formula

12/15/13

I can not seem to grasp this quadratic formula
Select the values of x that are solutions to the inequality 0>x^2 +5x-2   A. xΕ(-5-√33⁄2,-5+√33⁄2) B. xΕ[5-√33⁄2,-5+√33/2] C. xE(-∞,-5-√33/2)∪(-5+√33/2,∞) D. xE(-∞,-5-√33/2]∪[-5+√33/2,∞)
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Quadratic Formula

12/15/13

Quadratic Formula
Select the approximate values for x that are solutions to f(x)=0, where f(x)=-6x^2 +7x+8   A. (-0.71,1.88) B. (-6,7) C. (-1.17,-1.33) D. (-0.75,0.88)
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Quadratic Formula

12/15/13

Quadratic Formula
Select the approximate values of x that are solutions to f(x)=0, where f(x)=-9x^2+5x+7   A. (1.20,-0.65) B. (-9,5) C. (-0.56,-0.78) D. (-1.29,0.71)
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Quadratic Formula

12/15/13

quadratic formula
Select the approximate values of x that are solutions to f(x) = 0, where f(x)=-8x^2 +9x+5.   A. (-1.60,1.80) B. (-8,9) C. (-1.13,-0.63) D. (-0.41,1.53)
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Quadratic Formula Discriminant

11/03/13

9x^2-6x+1=0
Find the value of the discriminant  describe the number and types of roots find the exact solutions bybusing the quadratic formula  
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10/12/13

Use the quadratic formal to solve the equation
Use the quadratic formal to solve the equation (show all work)   (m-4)(3m-10)=3(m-2)+18  
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Quadratic Formula

04/26/13

how to use the quadratic formula
the problem 7x^2+123x-4
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Quadratic Formula Algebra

03/07/13

What is the solution using the quadratic formula to solve x^2-3x+9/4=0
What's the answer
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02/28/13

What is f(x)?
I dont understand how to solve quadratic functions. I'm supposed to solve f(x)-x^2+2x-3 by completing the square  but whenever I try to search how to do these kind of problems, I never see a... more
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Quadratic Formula Quadratic Equations

02/26/13

Quadratic Equation Help
I'm solving a quadratic equation which is 2x^2-x-10=0 and I know that a=2 b=-1 and c=-10 ans with the problem put it into the formula which is -(-10 +- √ -1^2-4(2)(-10) and when I get my answer I... more
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Quadratic Formula

01/24/13

i have been working on...x^2 +5x +8 =4 for a test review and can't solve the problem. Any help would be great...thx
x2 + 5x + 8 = 4
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Quadratic Formula

01/13/13

Solve the quadratic formula when a=5, b=12, and c=3 and also solve it with a=3, b=-5, and c=-9
I'm trying to solve the quadratic formula with these numbers, but my answers always ended up not being whole numbers. Can you solve it for me and tell me what you get? 
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Quadratic Formula Factor

12/16/12

9x2+21x-5=-15
solve by factoring or using the quadratic formula.
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Quadratic Formula Quadratic Equations Factoring

12/12/12

How do you factor an equation like ax^2+bx+c if the a is negative and there is no c?
I know how to graph these kinds of equations with parabolas but cannot figure out how to find the factored, vertex, and standard forms of these equations.
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Quadratic Formula

12/07/12

63t2 - 38t - 5 = 0
use the quadratiic formula
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