Precalculus Examples

$\log (25) + \log (4)$

Step 1

Use the product property of logarithms, $\log_{b} (x) + \log_{b} (y) = \log_{b} (x y)$ .

$\log (25 \cdot 4)$

Step 2

Multiply $25$ by $4$ .

$\log (100)$

Step 3

Logarithm base $10$ of $100$ is $2$ .

$2$