1/2(x-1)方-8=0x=?

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1/2(x-1)方-8=0x=?
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1/2(x-1)方-8=0x=?
1/2(x-1)方-8=0
x=?

1/2(x-1)方-8=0x=?
1/2(x-1)方-8=0
(x-1)^2=16
x-1=4或-4
x=5或-3

将8移项得1/2(x-1)^2=8,将1/2移项得(x-1)^2=16,此时分情况讨论:
4和-4的平方都得16,则x-1=4或x-1=-4,x=5或x=-3