因式分解(z2-x2-y2)2-4x2y2,用初二知识解答
问题描述:
因式分解(z2-x2-y2)2-4x2y2,用初二知识解答
答
(z²-x²-y²)²-(2xy)²=(z²-x²-y²+2xy)(z²-x²-y²-2xy)=【z²-(x²+y²-2xy)】【z²-(x²+y²+2xy)】=【z²-(x-y)&...
因式分解(z2-x2-y2)2-4x2y2,用初二知识解答
(z²-x²-y²)²-(2xy)²=(z²-x²-y²+2xy)(z²-x²-y²-2xy)=【z²-(x²+y²-2xy)】【z²-(x²+y²+2xy)】=【z²-(x-y)&...