Answer
$ log_{2}\frac{x}{y}$
Work Step by Step
The quotient property of logarithms tells us that $log_{b}\frac{x}{y}=log_{b}x-log_{b}y$ (where x, y, and, b are positive real numbers and $b\ne1$).
Therefore, $log_{2}x-log_{2}y= log_{2}\frac{x}{y}$.
