x-y-1分之x²-2xy+y²-1 化简

来源：学生作业帮助网编辑：作业帮时间：2024/05/13 05:19:16

x-y-1分之x²-2xy+y²-1 化简
x-y-1分之x²-2xy+y²-1 化简

x-y-1分之x²-2xy+y²-1 化简
=[(x-y)²-1]/(x-y-1)
=(x-y+1)(x-y-1)/(x-y-1)
=x-y+1

（x²-2xy+y²-1)/(x-y-1)
=[(x-y)²-1]/(x-y-1)
=(x-y+1)(x-y-1)/(x-y-1)
=x-y+1