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March 25, 2017

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multiply and solve please i need help bad

x^2-1/x-3 * 4x-12/x^2-x-2

  • algebra - ,

    You can factor out some terms.
    (x^2-1)/(x-3) * (4x-12)
    = [(x+1)(x-1)/(x-3)]*4(x-3)
    = 4(x+1)(x-1)
    The divisor (x^2 -x -2) can be rewritten
    (x-2)(x+1), so the (x+1) terms can also be cancelled out. That leaves you with
    4(x-1)/(x-2)

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