(x²+y²)²-4x²y ² 因式分解(x²+y²)²-4x²y²因式分解

问题描述:

(x²+y²)²-4x²y ² 因式分解
(x²+y²)²-4x²y²
因式分解

(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
=[(x+y)(x-y)]²