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计算﹣﹙a^2b﹚^3﹢2a^2b×﹙﹣3a^2b﹚^2的结果是
人气:377 ℃ 时间:2020-06-02 04:12:04
解答
﹣﹙a^2b﹚^3+2a^2b×﹙﹣3a^2b﹚^2
=﹣a^6b^3+2a^2b×9a^4b^2
=﹣a^6b^3+18a^6b^3
=17a^6b^3
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