问题描述: 因式分解:(x的平方-y的平方)(x+y)-(x-y)的三次方 1个回答 分类:数学 2014-10-25 问题解答: 我来补答 (x^2-y^2)(x+y)-(x-y)^3=(x+y)(x-y)(x+y)-(x-y)^3=(x-y)[(x+y)^2-(x-y)^2]=(x-y)[(x+y)+(x-y)][(x+y)-(x-y)]=(x-y)*2x*2y=4xy(x-y) 展开全文阅读