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数学
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4x2-27x+18>0 x2-6x+4
人气:251 ℃ 时间:2020-03-29 06:21:58
解答
(4x-3)(x-6)>0
∴x>6或x这两个不等式组对的解集不等式组无解最后问下为什么说是空集是否理解为在数轴上怎么表示在数轴上不能表示向两边,没有公共部分即可
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