SOLUTION: x+5/x^2-36 find the domain

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Question 567296: x+5/x^2-36
find the domain
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B5%29%2F%28x%5E2-36%29
The "domain" specifies all valid values of x.
In this case, if the denominator is zero, the expression is undefined.
This means that x can take be any value EXCEPT when:
x^2-36 = 0
x^2 = 36
x = +-6
.
Therefore the domain is:
(-oo, -6) U (-6, 6) U (6, +oo)
where
oo represents infinity