分解因式(p²+q²)²-4p²q²=

问题描述:

分解因式(p²+q²)²-4p²q²=

(p²+q²)²-4p²q²
=(p²+q²+2p^2q^2)(p²+q²-2p^2q^2)
=(p+q)^2((p-q)^2