[﹙2a²+1﹚的m次幂]²÷[﹙a²+1﹚²]的m次幂
问题描述：
[﹙2a²+1﹚的m次幂]²÷[﹙a²+1﹚²]的m次幂
答
[(2a²+1)^m]²÷[(a²+1)²]^m
=(2a²+1)^(2m)÷(a²+1)^(2m)
=[(2a²+1)/(a²+1)]^(2m)
=[2-1/(a²+1)]^(2m)