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

(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)&...