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Moderate

Domain of a Function: $x$ in the Denominator

ACTMAT-XJLFNE

What is the domain of the function:

$$f(x) = \frac { x-3 }{ { x }^{ 2 }-4x-12 } $$

A

$ \{ x: x\neq 3\} $

B

$ \{ x: x\neq -2,3,6\} $

C

$ \{ x: x\neq -6,2,3\} $

D

$ \{ x: x\neq -6,2\} $

E

$ \{ x: x\neq -2,6\} $