The expression log(x9y7z6)\displaystyle {\log{{\left(\frac{{{x}^{{9}}{y}^{{7}}}}{{z}^{{6}}}\right)}}} can be written in the form

Alog(x)+Blog(y)+Clog(z)\displaystyle {A}{\log{{\left({x}\right)}}}+{B}{\log{{\left({y}\right)}}}+{C}{\log{{\left({z}\right)}}}

where
A=\displaystyle {A}= , B=\displaystyle {B}= , and C=\displaystyle {C}=