(x+y)^4(x-y)^2-(x+y)^2(y-x)^4因式分解

来源：学生作业学帮网编辑：学帮网时间：2024/06/04 09:26:24

(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