Answer
$\dfrac{f(x)}{g(x)}; \text{ } g(x)$
Work Step by Step
RECALL:
$\left(\dfrac{f}{g}\right)(x) = \dfrac{f(x)}{g(x)}$, where $g(x) \ne 0$ since division of zero is not allowed.
Thus, the missing expressions in the given statement are:
$\dfrac{f(x)}{g(x)}; \text{ } g(x)$
