x^2-xy+2yz-4z^2因式分解
问题描述:
x^2-xy+2yz-4z^2因式分解
答
原式=(x²-4z²)-(xy-2yz)=(x+2z)(x-2z)-y(x-2z)=(x-2z)(x+2z-y)
x^2-xy+2yz-4z^2因式分解
原式=(x²-4z²)-(xy-2yz)=(x+2z)(x-2z)-y(x-2z)=(x-2z)(x+2z-y)