# How do you find the domain of #f(x)=(-3x^2)/(x^2+4x-45)#?

##### 1 Answer

Aug 5, 2016

Domain: all Real values **except**

#### Explanation:

**except** those values which cause the denominator to be equal to zero.

That is the Domain will be all

**except** when

Factoring:

So the Domain of