Question

What is the domain of f(x) = (x+3)/(x^2-64)

Answer 1

x>8, x<-8, -8<x<8

Explanation:

The domain is determined solely by the denominator in this problem. The denominator cannot equal 0, and as a result in this problem cannot equal 8 or -8. The above answers are the results of that notion. These do not equal any form of 8, but it's perfectly fine to be negative.