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6x^2-5x+3与6x^2-5x+7用作差法比较
人气:236 ℃ 时间:2020-05-11 00:04:39
解答
(6x^2-5x+3)-(6x^2-5x+7)= -4 < 0
所以 6x^2-5x+3 < 6x^2-5x+7
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