(p²+q²)²-4p²q²

来源：学生作业帮助网编辑：作业帮时间：2024/05/03 22:08:07

(p²+q²)²-4p²q²
(p²+q²)²-4p²q²

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