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March 26, 2017

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How do I set up the quadratic equation for this problem?

4.0= (2x)^2 / (1.0-x)(1.0-x)

I know how to use the formula, but I have a hard time setting those equation to zero. Please explain step by step.
Thank you

  • math - ,

    your equation becomes:

    4 = 4x^2/(1-x)^2
    multiply both sides by (1-x)^2

    4(1-x)^2 = 4x^2
    4(1 - 2x + x^2) = 4x^2
    4 - 8x + 4x^2 = 4x^2
    4=8x
    x = 1/2

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