Question

2^(x+1)+4^x=8
Solve for x

Answer 1

Solve for x

2^(x+1)+4^x=8
2^(x+1) + 2^2 x = 2^3
equating the powers
 x+1 + 2 x   =  3
           3 x   = 3 - 1
           3 x   = 2
              x   =  2/3