Express your answer as a polynomial in standard form.
$\begin{array}{l}
f(x)=3 x-4 \\
g(x)=x^2+6 x-4
\end{array}$
Find: $g(f(x))$
$\begin{array}{l}
f(x)=3 x-4 \\
g(x)=x^2+6 x-4
\end{array}$
Find: $g(f(x))$