Question

Resolva a equaçao exponencial na incognita x : 8^x-4 = 4^x +
1

Answer 1

x-4         x + 1
8      = 4
3(x - 4 )               2(x + 1)
2                   =   2

3 (x - 4 ) = 2(  x + 1 )
3 x - 12 = 2 x + 2
3 x - 2 x = 2 + 12
x = 14