计算(3xy^2-6x^y)/(-2x)
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计算(3xy^2-6x^y)/(-2x)
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(3xy^2-6x^y)/(-2x)
=3xy^2/(-2x)-6x^2y/(-2x)
=-3/2y^2+3xy
=3xy^2/(-2x)-6x^2y/(-2x)
=-3/2y^2+3xy
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