3(x-2)³-81=0,求x的值赏20

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3(x-2)³-81=0,求x的值赏20
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3(x-2)³-81=0,求x的值赏20
3(x-2)³-81=0,求x的值
赏20

3(x-2)³-81=0,求x的值赏20
3(x-2)³-81=0
3(x-2)³=81
(x-2)³=27
x-2=3
x=5