m³+2m²=m+m² m(m²+m)+m²拆开后应为m³+m²+²吧?

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/29 06:09:20

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