SOLUTION: what is the domain of the function f(x) = (x squared - 1 )(-1) (the neg 1 is a power)

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Question 213119: what is the domain of the function f(x) = (x squared - 1 )(-1) (the neg 1 is a power)
Answer by jonvaliente(64) About Me  (Show Source):
You can put this solution on YOUR website!
%28X%5E2-1%29%5E%28-1%29 can also be expressed as:
1%2F%28X%5E2-1%29
The only time that this function is undefined is when the denominor is 0, so:
X%5E2-1=0
%28X%2B1%29%28X-1%29=0
(X+1)=0 or (X-1)=0
X=-1 or X=1
So the domain of the function(x) is all real numbers x, where x is NOT 1 or -1.