(x²+y²)²-4x²y² 公式法 因式分解
问题描述:
(x²+y²)²-4x²y² 公式法 因式分解
答
(x²+y²)²-4x²y²
=(x²+y²)²-(2xy)²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
答
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)(x+y)(x-y)(x-y)
答
(x²+y²)²-4x²y² =(x²+y²)²-(2xy)²=(x²+y²+2xy)(x²+y²-2xy)=(x+y)²(x-y)² 【希望可以帮到你!祝学习快乐!】
答
(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²