Find g(f(x)) f(x)=9x^2 g(x)=4x+3

$f (x) = 9 x^{2}$ $g (x) = 4 x + 3$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (9 x^{2})$ by substituting in the value of $f$ into $g$ .

$g (9 x^{2}) = 4 (9 x^{2}) + 3$

Step 3

Multiply $9$ by $4$ .

$g (9 x^{2}) = 36 x^{2} + 3$