QuestionWhich values are NOT in the domain of the rational function? $f(x) = \frac{(x - 1)(x + 2)}{x^2 - 9}$

Studdy Solution
List the values of $x$ that are not in the domain:
The values $x = 3$ and $x = -3$ make the denominator zero, so they are not in the domain.
The values that are NOT in the domain of the function are $\boxed{3}$ and $\boxed{-3}$.