Question

log2(x mais 2) - log2(x- 4) igual a 2

Answer 1

       $log(2)(x + 2)-log(2)(x-4)=2 \\ \\ log(2) \frac{x+2}{x-4}=2 \\ \\ \frac{x+2}{x-4}=2^2 \\ \\ x+ 2 =4(x-4) \\ \\ x+2=4x-16 \\ \\ x-4x=-16-2 \\ \\ -3x=-18 \\ \\ x= \frac{-18}{-3} \\ \\ x=6$