(a的m次方)×(-a的3m次方)的2n次方÷(a的mn次方)的5次方=?
问题描述:
(a的m次方)×(-a的3m次方)的2n次方÷(a的mn次方)的5次方=?
答
a^m*[(-a)^3m]^2n÷[a^(mn)]^5=a^m*a^(6mn)÷[a^(mn)]^5=a^(m+6mn-5mn)=a^(m+mn)=a^(m+mn)=a^[m(1+n)]=(a^m)^(1+n).