计算:(3m²n﹚²·﹙﹣2m²﹚^4·﹙﹣n²﹚^5

问题描述:

计算:(3m²n﹚²·﹙﹣2m²﹚^4·﹙﹣n²﹚^5

(3m²n﹚²·﹙﹣2m²﹚^4·﹙﹣n²﹚^5
=-9m^4n^2x16m^8xn^10
=-144m^12 n^12