QuestionFind the $x$-values (if any) at which $f$ is not continuous. State whether the discontinuities are removable or nonremovable. (Enter your answers as comma-separated lists. If an answer does not exist, enter DNE.) $$f(x)=\frac{x+2}{x^{2}-2 x-8}$$ removable discontinuities $$x=$$ $\square$ nonremovable discontinuities $\quad x=$ $\square$