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:2024/06/06 00:59:35

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