Algebra Examples

$f (8) = \sqrt{8 + 1}$

Step 1

Add $8$ and $1$ .

$f (8) = \sqrt{9}$

Step 2

Rewrite $9$ as $3^{2}$ .

$f (8) = \sqrt{3^{2}}$

Step 3

Pull terms out from under the radical, assuming positive real numbers.

$f (8) = 3$