The Notation $\log _{b} x$ Means That The $\log$ Base Is Unspecified $\log _{b} x=3$

Short Answer

The notation $\log _{b} x$ means that the $\log$ base is unspecified. Given that $\log _{b} x=3$ , $\log _{b} y=3.2$ , and $\log _{b} z=4.7$ , use properties of $\log$ to find $\log _{b}\left(\frac{x y^{3}}{z}\right)$ .