Find the oblique (slant) asymptote of LaTeX:  \displaystyle f(x) = \frac{x^{3} - 7 x^{2} - 20 x + 96}{x^{2} - 4 x - 12} .

The oblique asymptote is the whole part without the remainder after polynomial long division.

Dividing gives the quotient LaTeX:  \displaystyle x - 3 and the remainder LaTeX:  \displaystyle 60 - 20 x . The oblique asymptote is LaTeX:  \displaystyle y = x - 3 .