# What is the value of #\lim _ { x \rightarrow - 3} \frac { x ^ { 2} - 9} { x ^ { 2} - 2x - 15} #?

##### 2 Answers

Apr 13, 2017

#### Explanation:

By factoring out the numerator and the denominator,

I hope that this was clear.

Apr 13, 2017

#### Explanation:

Using L'Hopital's rule, we can work out the limit of an expression.

**L'Hopital's rule:**

#=lim_(x->-3)(2x)/(2x-2)#

#=lim_(x->-3)x/(x-1)#