Find f(g(x)) f(x)=4x+7 , g(x)=3x^2

$f (x) = 4 x + 7$ , $g (x) = 3 x^{2}$

Set up the composite result function.

$f (g (x))$

Evaluate $f (g (x))$ by substituting in the value of $g$ into $f$ .

$f (3 x^{2}) = 4 (3 x^{2}) + 7$

Multiply $3$ by $4$ .

$f (3 x^{2}) = 12 x^{2} + 7$

Find f(g(x)) f(x)=4x+7 , g(x)=3x^2

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