(4^n)^2+2*4^n+1=(4^n+1)^2
[tex]\frac{x}{5}-2=\frac{x-95}{30}[\tex]
6x - 60 = x - 95
5x = -35
x = -7
3^6x+5 : 3^3x-2 =81
3^6x+5 -(3x-2) =81
3^(6x+5 -3x +2) =81
3^(3x+7) =3^4
3х+7=4
3х= -3
х=-1