Algebra Examples

$s (x) = x^{2} + 2 x - 4$ $w (x) = \frac{4}{x - 9}$

Step 1

Set up the composite result function.

$w (s (x))$

Step 2

Evaluate $w (x^{2} + 2 x - 4)$ by substituting in the value of $s$ into $w$ .

$w (x^{2} + 2 x - 4) = \frac{4}{(x^{2} + 2 x - 4) - 9}$

Step 3

Subtract $9$ from $- 4$ .

$w (x^{2} + 2 x - 4) = \frac{4}{x^{2} + 2 x - 13}$