Which expression is equivalent to logb(x)+logb(y)−logb(z)\log_{b}(x) + \log_{b}(y) - \log_{b}(z)logb(x)+logb(y)−logb(z)?
\log_{b}(x + y - z)
\log_{b}(\frac{xy}{z})
\log_{b}(x) \cdot \frac{\log_{b}(y)}{\log_{b}(z)}
\log_{b}(xyz)