1),2^m=9,4^n=2,所以,2^2n=2,2^(2m-4n+1)=2^(2m+1)/2^4n=2^2mx2/2^4n=81x2/4=81/22),已知(a^2-3)^(a+3)=1,则有两种情况,a^2-3=1或a+3=0,a^2-3=0,与a是整数不符,所以a=-3.所以2a^2+3a-1=18-9-1=8