SOLUTION: x+3 over x squared -4 How would I factor that, or if I am not supposed to factor how am I suppposed to find the domain?

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Question 93690: x+3
over
x squared -4
How would I factor that, or if I am not supposed to factor how am I suppposed to find the domain?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x+3
over
x squared -4
How would I factor that, or if I am not supposed to factor how am I suppposed to find the domain?
----------------
(x+3)/(x^2-4)
= (x+3) /[(x-2)(x+2)]
------------
The denominator must not be zero so x cannot be 2 or -2.
Therefore the domain is "all Real Numbers except x=2 or x=-2"
===============
Cheers,
Stan H.