2xy²-x²-y²+1等于几,因式分解
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 06:22:30
2xy²-x²-y²+1等于几,因式分解
2xy²-x²-y²+1等于几,因式分解
2xy²-x²-y²+1等于几,因式分解
2xy-x²-y²+1
=1-(x-y)²
=(1-x+y)(1+x-y)
2xy-x²-y²+1
=1-(x-y)²
=(1-x+y)(1+x-y)
1-(x-y)^2=(1-x+y)(1+x-y)
2xy²-x²-y²+1等于几,因式分解
2xy²-x²-y²+1等于几,因式分解
2xy²-x²-y²+1等于几,因式分解
2xy-x²-y²+1
=1-(x-y)²
=(1-x+y)(1+x-y)
2xy-x²-y²+1
=1-(x-y)²
=(1-x+y)(1+x-y)
1-(x-y)^2=(1-x+y)(1+x-y)