1) a的立方哪宏的薯历2n次方=a的2n次方的立数缓搜方=3^3=272) a(4n+4m)=a(4n)*a(4m)=(3^2)*(2^4)=9*16=144
1.a的立方的2n次方=272.a(4n+4m)=144