Precalculus Examples

$5^{2 \log_{5} (7)}$

Step 1

Simplify $2 \log_{5} (7)$ by moving $2$ inside the logarithm.

$5^{\log_{5} (7^{2})}$

Step 2

Exponentiation and log are inverse functions.

$7^{2}$

Step 3

Raise $7$ to the power of $2$ .

$49$