# How do you find the domain for #R(x) = (x^2 + x - 12)/(x^2 - 4)#?

##### 1 Answer

Jan 13, 2016

#### Answer:

Find that

#### Explanation:

Both the numerator and denominator are well defined for any Real value of

#x^2-4 = 0# when#x = +-sqrt(4) = +-2#

So the domain of

Note that

graph{(x^2+x-12)/(x^2-4) [-20, 20, -10, 10]}