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计算:12xy^2/(x+y)*(x^2-y^2)/4xy
题目详情
计算:12xy^2/(x+y) * (x^2 - y^2)/4xy
▼优质解答
答案和解析
12xy^2/(x+y) * (x^2 - y^2)/4xy
=12xy^2/(x+y) * (x - y)（x+y)/4xy
=3y(x-y)
=12xy^2/(x+y) * (x - y)（x+y)/4xy
=3y(x-y)
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