Question

log2 (x+6) - log2 x = log2 4, como resolve

Answer 1

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