a的3m+2n次方=2^3*3^2=8*9=72
已知2x+5y-3=0,求4的x次方·32的y次方的值
2x+5y-3=0,则2x=3-5y
4的x次方·32的y次方=2^2x*2^5y=2^(3-5y)*2^5y=2^3=8