Question 105154
The domain of the function is all x values where f(x) is defined. 
In this case, any division by zero would be undefined. Or when,
{{{x^2-x-2=0}}}
{{{(x-2)(x+1)=0}}} Factor the equation. 
with solutions x=2 and x=-1.
So the domain is any x except x=2 and x=-1.