(5m的3次方n的2次方-6m的2次方)/(3m)=?
问题描述:
(5m的3次方n的2次方-6m的2次方)/(3m)=?
答
原式为:(5m³n²-6m²)/(3m)
=m(5m²n²-6m)/3m
=(5m²n²-6m)/3
=5m²n²/3 -2m