Precalculus Examples

$h (t) = \sqrt{x^{2} + 2 x + 4}$ , $h (2)$

Step 1

Replace the variable $t$ with $2$ in the expression.

$h (2) = \sqrt{x^{2} + 2 x + 4}$

Step 2

Remove parentheses.

$\sqrt{x^{2} + 2 x + 4}$