m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+m²+²吧?

来源：学生作业帮助网编辑：作业帮时间：2024/04/27 18:07:04

m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+m²+²吧?
m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+m²+²吧?

m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+m²+²吧?
对啊
m(m²+m)+m²
=m³+m²+m²
合并同类项
=m³+2m²