tentukan nilai x dari 4^x+1 = 8x

[tex] 4^{x+1} = 8^x [/tex]
[tex] (2^2)^{x+1} = (2^3)^x[/tex]
[tex] 2^{2(x+1)} = 2^{3x} [/tex]
[tex] 2^{2x+2} = 2^{3x} [/tex]
2x+2 = 3x
-x = -2
x= 2