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Question 774029: how do i find the domain of this expression?
x(x+1)^-2
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! x(x+1)^-2
can be written as:
x/(x+1)^2
.
Domain defines all values that x can take.
The ONLY value x can't take is if the denominator is zero.
Denominator is zero when x= -1
So, the domain is all real numbers except -1
Or, in "interval notation":
(-oo, -1) U (-1, +oo)
where
oo stands for infinity
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