x=2^(m+1)y=3+4^mx=2^m*22^m=x/2(2^m)^2=x^2/42^(2m)=x^2/4y=3+(2^2)^m=3+2^(2m)y=3+x^2/4
Y=3+4^M=3+2^(2M)=3+(1/4)*2^(2m+2)=3+(1/4)*[2^(m+1)]^2=3+(1/4)X^2
