Evaluate the limit. $$\lim_{x \to -\infty} \frac{x^3 - 6 x^2+ x - 6 }{8 - x^2}$$
Enter INF for $\infty$, -INF for $-\infty$, or DNE if the limit does not exist, but is neither $\infty$ nor $-\infty$.

Limit: