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March 30, 2017

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Perform the indicated operation and simplify?

(4x)/(x-2)+(8)/(x+2)

  • Math - ,

    Multiply the first fraction by the denominator of second and vie versa:
    4x(x+2)/(x^2-4)+8(x-2)/(x^2-4)

    =(4x^2+8x+8x+16)/(x^2-4)

    You can do a little more from here, but this exerise does not yield a very pretty answer.

    Remember that (a^2)-(b^2) = (a-b)(a+b)

  • Math - ,

    Minor ammendment: I see how the first sentence can be misleading. You multiply both numerator and denominator, not just the numerator.

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