已知(x-y)2-2x+2y+1=0,则(x-y)^3是多少如题,要有过程!

已知(x-y)2-2x+2y+1=0,则(x-y)^3是多少如题,要有过程!
已知(x-y)2-2x+2y+1=0,则(x-y)^3是多少
如题,要有过程!

已知(x-y)2-2x+2y+1=0,则(x-y)^3是多少如题,要有过程!
(x-y)²-2(x-y)+1=0
(x-y-1)²=0
x-y-1=0
x-y=1
(x-y)³=1

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