a的2n+1次方乘以(a的2n+1次方)的平方乘以a的n-3次方等于多少
问题描述：
a的2n+1次方乘以(a的2n+1次方)的平方乘以a的n-3次方等于多少
答
a^(2n+1)*[a^(2n+1)]^2*a^(n-3)
=a^(2n+1)*a^(4n+2)*a^(n-3)
=a^(2n+1+4n+2+n-3)
=a^(2n+4n+n+1+2-3)
=a^(7n)