(3x-6)(2x+1)>0
人气:397 ℃ 时间:2020-06-23 08:39:19
解答
1、当(3x-6)与(2x+1)同为正,即(3x-6)>0 x>2 ;(2x+1)>0 x>-0.5 那么当x>2时满足
2、当(3x-6)与(2x+1)同为负,即(3x-6)
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