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8x+1/5x+3>1 解不等式
人气:163 ℃ 时间:2020-01-25 13:46:34
解答
(8x+1)/(5x+3)-1>0
(8x+1)/(5x+3)-(5x+3)/(5x+3)>0
(8x+1-5x-3)/(5x+3)>0
(3x-2)(5x+3)>0
∴x2/3
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