问题描述: (x+y)^4(x-y)^2-(x+y)^2(y-x)^4因式分解 1个回答 分类:数学 2014-12-12 问题解答: 我来补答 (x+y)^4(x-y)^2-(x+y)^2(y-x)^4=(x+y)^4(x-y)^2-(x+y)^2(x-y)^4=(x+y)^2(x-y)^2[(x+y)^2-(x-y)^2]=4xy(x+y)^2(x-y)^2 展开全文阅读