已知k＞0，且关于x的方程3kx2+12x+k+1=0有两个相等的实数根，那么k的值等于_1．_刷题宝

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已知k＞0，且关于x的方程3kx²+12x+k+1=0有两个相等的实数根，那么k的值等于 ____．

上一题下一题 0.0难度选择题更新时间:2018-02-14 11:37:39

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