Algebra
posted by Cassie .
I know what the answer is just not how to exopress it. Can someone help me please?
State the domain of the function:
f(x)(2+x)/(3x)
Now I know the domain is
(infinity,3) U (3, infinity)?
(infinity,3] U [3, infinity) ?
How do I express it? do I use ] brackets or open at the infinity and closed by the 3? i know x doesn't equal 3 so how do I show this in the answer? Thank you!

Algebra 
Ingrid
uhh....i don't think ur cleer on wat ur saying
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