①(25m^4-15m^2+5m)/(-5m)②（3a^2b-2ab+2ab^2）/ab③（5m^3n^2-6m^2）/3m高手帮帮忙

分类: 作业答案 • 2021-12-31 11:09:08

问题描述：

答

①(25m^4-15m^2+5m)/(-5m)=5m(5m³-3m+1)/(-5m)=-5m³+3m-1②（3a^2b-2ab+2ab^2）/(ab)=an(3a-2+2b²)/(ab)=2b²+3a-2③（5m^3n^2-6m^2）/(3m)=5/3*m²n²-2m