# Question #5ba2e

Feb 16, 2018

$6$

#### Explanation:

Starting with the expression

${a}^{2} - 10$

we substitute $4$ for $a$

${4}^{2} - 10$

Then you do $4 \times 4$ since it is to the second power.

$4 \times 4 = 16$

After that, you subtract $10$ from $16$

$16 - 10 =$ your answer