/ 2 \ |x - 9*x| lim |--------| x->0+| 2 | \x - 3*x/
Limit((x^2 - 9*x)/(x^2 - 3*x), x, 0)
= 3
3
= 3.0
/ 2 \ |x - 9*x| lim |--------| x->0-| 2 | \x - 3*x/
3.0