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数学
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3(x+1)²-1=8
解方程
人气:262 ℃ 时间:2020-04-14 21:06:51
解答
3(x+1)²-1=8;
3(x+1)²=9;
(x+1)²=3;
x+1=±√3;
x=-1±√3;
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