SOLUTION: What is the domain of ln (x^2 -1)?

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Question 531162: What is the domain of ln (x^2 -1)?
Answer by lwsshak3(11628) About Me  (Show Source):
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What is the domain of ln (x^2 -1)?
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If you remember the curve of a log (x) function, x>0.
so, x^2-1>0
(x+1)(x-1)>0
number line
<....+....-1....-.....1....+......>
Domain: (-∞,-1) U (1,∞)