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12 February, 03:19

what is the greatest common factor (GCF) of the numerator and denominator of the rational expression below? (6x+18) / (x^2-x-12)

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  1. 12 February, 03:34
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    GCF = x+3

    Step-by-step explanation:

    (6x+18) / (x^2-x-12) = 6 (x+3) / (x^2 + 3x - 4x - 12)

    = 6 (x+3) / (x (x+3) - 4 (x+3))

    = 6 (x+3) / ((x-4) (x+3))
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