Question

Qual a resolução para 8^x-9=(1/2)^x+1

Answer 1

$8^x-9=( \frac{1}{2})+1 \\ 8^x=2^{-x}+8\\ 2^{3x} = 2^{-x}+2^3$

Answer 2

Ola Nathalia

8^(x-9) = (1/2)^(x + 1)

2^(3x - 27) = 2^(-x-1)

3x - 27 = -x - 1
3x + x = -1 + 27
4x = 26
x = 26/4 = 13/2