Precalculus Examples

$\log ({(10)}^{- 4})$

Step 1

Use logarithm rules to move $- 4$ out of the exponent.

$- 4 \log (10)$

Step 2

Logarithm base $10$ of $10$ is $1$ .

$- 4 \cdot 1$

Step 3

Multiply $- 4$ by $1$ .

$- 4$