The following table lists the value of functions $g$ and $h$, and of their derivatives, $g'$ and $h'$, for $x=-2$. $x$ | $g(x)$ | $h(x)$ | $g'(x)$ | $h'(x)$ :-: | :-: | :-: | :-: | :-: $-2$ | $~~~~~1$ | $-12$ | $~~~2$ | $~~~8$ Let function $F$ be defined as $F(x)=6g(x)+2h(x)-1$. $F'(-2)=$ [[☃ numeric-input 1]]