Question 567296
{{{(x+5)/(x^2-36)}}}
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