SOLUTION: Use interval notation to indicate where f(x) is continuous. f(x)=(x-6)/((x-1)(x+1))

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Question 403438: Use interval notation to indicate where f(x) is continuous.
f(x)=(x-6)/((x-1)(x+1))
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=(x-6)/((x-1)(x+1))
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The function is "undefined" when the denominator goes to zero -- all other areas it would be "continuous".
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Function goes to zero when x={-1, 1}
so, the range where it is continuous is:
(-oo, -1) U (-1, 1) U (1, +oo)
where:
oo signifies infinity