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32x^2y-64xy-4x^3y. When I factored out the GCF, I got 4. When I try to factor is completely, I got lost and confused. Can someone please help???

  • math -

    Your GCF is 4xy

    32x^2y-64xy-4x^3y
    = 4xy(8x - 16 - x^2)

    (expand the answer to verify)

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