分解因式(p²+q²)²-4p²q²=
问题描述:
分解因式(p²+q²)²-4p²q²=
答
(p²+q²)²-4p²q²
=(p²+q²+2p^2q^2)(p²+q²-2p^2q^2)
=(p+q)^2((p-q)^2