解方程:(x-1)的平方=1
过程也要写
(x-1)²=1
x-1=±1
x=2,或x=0
(x-1)²=1
(x-1)(x-1)=1
x²-x-x+1=1
x²-2x+1=1
x²-2x=0
x²=2x
x=2,或x=0
x-1=±1
x=0或x=2
(x-1)²=1,x-1=±1,x=2或0
解:
(x-1)²=1
x²-2x=0
x(x-2)=0
x1=0,x2=2
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过程也要写
(x-1)²=1
x-1=±1
x=2,或x=0
(x-1)²=1
(x-1)(x-1)=1
x²-x-x+1=1
x²-2x+1=1
x²-2x=0
x²=2x
x=2,或x=0
x-1=±1
x=0或x=2
(x-1)²=1,x-1=±1,x=2或0
解:
(x-1)²=1
x²-2x=0
x(x-2)=0
x1=0,x2=2