分解因式:(xy+1)-(x+y)=

来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/31 15:55:07
分解因式:(xy+1)-(x+y)=分解因式:(xy+1)-(x+y)=分解因式:(xy+1)-(x+y)=(xy+1)-(x+y)=xy-y+1-x=x(y-1)-(y-1)=(x-1)(y-1)希

分解因式:(xy+1)-(x+y)=
分解因式:(xy+1)-(x+y)=

分解因式:(xy+1)-(x+y)=
(xy+1)-(x+y)=xy-y+1-x=x(y-1)-(y-1)=(x-1)(y-1)
希望可以采纳

原式=(xy-x)-y+1
=x(y-1)-(y-1)
=(x-1)(y-1)

(xy+1)-(x+y)
=xy+1-x-y
=(xy-y)-(x-1)
=y(x-1)-(x-1)
=(y-1)(x-1)