239 Answered Questions for the topic Quadratic Formula

06/10/14

Everything Quadratic
In my 8th grade Advanced Algebra class, my group is moving extremely slowly due to constant chattering. I find it frustrating and would like to have the math skills to go into Advanced Geometry... more
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06/10/14

quadratic formula
Solve the equations using the quadratic formula;   5x2+2x-3=0                and             x2+x+3=0         Please help...thank you
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05/24/14

Need to be shown how to fully do the quadratic formula n^2 - 4n - 1 = 0
   n^2 - 4n - 1 = 0        Need to be shown how to fully do the quadratic formula  and fully simplify
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05/24/14

Need to be shown how to fully do the quadratic formula
      1. x^2 - 8x = -12        and     2.  n^2 - 4n - 1 = 0    Solve using the quadratic formula and simply simplify
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05/09/14

exact solution help
Find the exact solution simplify as much as possible and show work    5x2+1=4x
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04/24/14

5x^2-8x-4=0 solve using quadratic formula
I know the answer is -2/5, 2 but I can not write it out with that number. can you help me see the steps. thank you
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04/23/14

3x^2+14x-5=0 solve quadratic fomula
3x^2+14-5=0 I know the answer is 1/3, -5. But I have tryed and cannot get that. pleases show me the steps. i must be missing thank you so much
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04/23/14

4x^2-17x-15=0 solve quadratic formula
I know the answer is  5, -3/4 but I am missing something. please help show each step and use quadratic formula. thank you
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04/23/14

x^2-49=0 solve using quadratic formula
x^2-49=0 I know the answer is 7,-7 but I am not able to get that. please show me the steps so I can see what I am missing thank you
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04/06/14

How to solve quadratic functions that contain fractions?
What is the best way to solve a quadratic equation that contains fractions? An example is 1/2x - 2x = 3/2
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03/31/14

math question 2 week 7
What is the quadratic formula?What is it used for?Provide a useful example of a quadratic equation for someone  to solve. Show your steps or at least some of your steps in how you derived to your... more
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03/03/14

use the quadratic formula to solve 3v^2+4v-1=0
 can you show me step by step using the quadratic formula to solve 3v^2+4v-1=0. Also how to recheck answer step by step.
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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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01/28/14

3x^2+28x+16=14 solve the quadratic
Use the quadratic formula to solve the quadratic
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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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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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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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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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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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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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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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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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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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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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