Precalculus Examples

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

Step 1

Rewrite $\log (4)$ as $\log (2^{2})$ .

$\log (2^{2}) + \log (25)$

Step 2

Expand $\log (2^{2})$ by moving $2$ outside the logarithm.

$2 \log (2) + \log (25)$

Step 3

Rewrite $\log (25)$ as $\log (5^{2})$ .

$2 \log (2) + \log (5^{2})$

Step 4

Expand $\log (5^{2})$ by moving $2$ outside the logarithm.

$2 \log (2) + 2 \log (5)$