a^m·a^3m·a·a^m-2a^3m·a^2m+1 计算
问题描述:
a^m·a^3m·a·a^m-2a^3m·a^2m+1 计算
答
a^m·a^3m·a·a^m-2a^3m·a^2m+1
=a^(m+3m+m)-2a^(3m+2m+1)
=a^5m-2a^(5m+1)