因式分解(x+y)2(x-y)2-(x-y)(x+y)(x2+y2)

问题描述:

因式分解(x+y)2(x-y)2-(x-y)(x+y)(x2+y2)
要过程,快

=(x+y)(x-y)[(x+y)(x-y)-(x²+y²)]
=(x+y)(x-y)(x²-y²-x²-y²)
=-2y²(x+y)(x-y)