## Intermediate Algebra (6th Edition)

$-2log_{6}7$
The power property of logarithms tells us that $log_{b}x^{r}=r log_{b}x$ (where x and b are positive real numbers, $b\ne1$, and r is a real number). Therefore, $log_{6}7^{-2}=-2 \times log_{6}7=-2log_{6}7$.
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