Applicare la formula: $\log_{b}\left(\frac{x}{y}\right)$$=\log_{b}\left(x\right)-\log_{b}\left(y\right)$, dove $b=10$ e $y=\sqrt[6]{8-x}$

Applicare la formula: $\log_{b}\left(x^a\right)$$=a\log_{b}\left(x\right)$, dove $a=\frac{1}{6}$, $b=10$ e $x=8-x$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=1$, $b=6$, $c=-1$, $a/b=\frac{1}{6}$ e $ca/b=- \left(\frac{1}{6}\right)\log \left(8-x\right)$