How do you use long division find the oblique asymptote h(x) = 10x^3/(2x^2 -1)?

1 Answer
Oct 7, 2015

y=5x

Explanation:

To find the oblique asymptote of this rational function, simply divide 10x^3 by 2x^2-1, then take the polynomial part (not including the remainder).

Solution:
color(white)(xxxxxx)ul((5x)(Polynomial Part))
2x^2-1|color(white)(x)10x^3
color(white)(xxxxx)-10x^3+5x
color(white)(xxxxxxxxxxxx)5x(Remainder)

The polynomial part is 5x, so the equation of the oblique asymptote is y=5x.