The following table lists the values of functions $g$ and $h$, and of their derivatives, $g'$ and $h'$, for $x=-2$.
$x$ | $g(x)$ | $h(x)$ | $g'(x)$ | $h'(x)$
:-: | :-: | :-: | :-: | :-:
$-2$ | $4$ | $1$ | $-1$ | $2$
Let function $H$ be defined as $H(x)=\dfrac{g(x)}{h(x)}$.
$H'(-2)=$ [[☃ math-keypad 1]]