(m+1)(㎡+m+1)

分类: 作业答案 • 2022-01-12 10:40:22

问题描述：

(m+1)(㎡+m+1)

答

=m(㎡+m+1)+1×(㎡+m+1)
=m³+m²+m+㎡+m+1
=m³+2m²+2m+1