问题描述: (x-2y)(x²-4y²)(x+2y)=什么?不对 1个回答 分类:数学 2014-10-16 问题解答: 我来补答 (x²-4y²)= (x-2y)(x+2y)(x-2y)(x²-4y²)(x+2y)=(x-2y)(x-2y)(x+2y)(x+2y)=(x-2y) ^2(x+2y)^2 再答: 这个(x²-4y²)= (x-2y)(x+2y)是提示 (x-2y)(x²-4y²)(x+2y) =(x-2y)(x-2y)(x+2y)(x+2y) =(x-2y) ^2(x+2y)^2 展开全文阅读