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计算:(3m²n﹚²·﹙﹣2m²﹚^4·﹙﹣n²﹚^5
人气:251 ℃ 时间:2019-09-22 05:01:26
解答
(3m²n﹚²·﹙﹣2m²﹚^4·﹙﹣n²﹚^5
=-9m^4n^2x16m^8xn^10
=-144m^12 n^12
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