explanation of long division in oblique asymptotes
This is the Oblique Asymptote if the degree of P(x) is exactly one more than the degree of the denominator Q(x). An oblique Asymptote is a line of the form y = mx + b where m â  0. To find Oblique Asymptote of a rational function, Step 1: Divide the numerator by the denominator using long division or synthetic division. Step 2: The result of division is a non-fractional part and a fractional part. The non-fractional part is the Oblique Asymptote.