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posted by Anonymous Monday, May 12, 2014 at 10:05pm.

Simplify the expression: (x - y) (3x + xy - 4y) + xy^2 - x^2y

(x - y) (3x + xy - 4y) + xy^2 - x^2y = (x-y)(3x + xy - 4y) - xy(x - y) = (x-y)(3x + xy - 4y - xy) = (x-y)(3x - 4y)

Thank you very much Reiny.

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