作业帮因式分解x²-y²-z²=2yz+2x+1x²-y²-z²=2yz+2x+1因式分解
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/01 21:52:55
因式分解x²-y²-z²=2yz+2x+1x²-y²-z²=2yz+2x+1因式分解
因式分解x²-y²-z²=2yz+2x+1
x²-y²-z²=2yz+2x+1因式分解
因式分解x²-y²-z²=2yz+2x+1x²-y²-z²=2yz+2x+1因式分解
=其实是+
原式=(x²+2x+1)-(y²-2yz+z²)
=(x+1)²-(y-z)²
=(x+y-z+1)(x-y+z+1)