Algebra Examples

$p (x) = x^{2} - 9 x$ , $q (x) = \sqrt{x + 4}$

Step 1

Set up the composite result function.

$q (p (x))$

Step 2

Evaluate $q (x^{2} - 9 x)$ by substituting in the value of $p$ into $q$ .

$q (x^{2} - 9 x) = \sqrt{(x^{2} - 9 x) + 4}$

Step 3

Remove parentheses.

$q (x^{2} - 9 x) = \sqrt{x^{2} - 9 x + 4}$