Precalculus Examples

$\log_{3} (81^{- 3})$

Step 1

Expand $\log_{3} (81^{- 3})$ by moving $- 3$ outside the logarithm.

$- 3 \log_{3} (81)$

Step 2

Logarithm base $3$ of $81$ is $4$ .

$- 3 \cdot 4$

Step 3

Multiply $- 3$ by $4$ .

$- 12$