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计算2t^3-t[2t^2+3(t-8)]
人气:215 ℃ 时间:2020-10-02 00:48:04
解答
2t^3-t[2t^2+3(t-8)]
=2t^3-2t^3-3t^2+24t
=-3t^2+24t
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