Posted by Brian on .
Use algebra and the properties of limits as needed to find the limit.
If the limit does not exist, say so.
(→ − ∞)lim: 9x^2+5x17 / 5x^3+12x^2+21

Math 
drwls,
The limit is zero, because
9x^2+5x17 / 5x^3+12x^2+21 > 9/(5x)
as x> infinity or infinity