3(x-1)³-81=0,求x,

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3(x-1)³-81=0,求x,3(x-1)³-81=0,求x,3(x-1)³-81=0,求x,3(x-1)³-81=0(x-1)³=27(x-1)&

3(x-1)³-81=0,求x,
3(x-1)³-81=0,求x,

3(x-1)³-81=0,求x,
3(x-1)³-81=0
(x-1)³=27
(x-1)³=3³
所以x-1=3
x=4
原来你是耍我的
http://zhidao.baidu.com/question/326933150599092605.html?oldq=1
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