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Question 97113This question is from textbook
: I need to find the domain for the following function:
f(x)=2x+7/x^3-5x^2-4x+20
I'm completely stuck on how to deal with the x^3.
Thanks!
This question is from textbook
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! the domain for the following function:
f(x)=2x+7/x^3-5x^2-4x+20
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You need to find out when the denominator is zero:
x^3-5x^2-4x+20 = 0
x=-2, x=2, x= 5
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So, domain is all Real Numbers except x=-2,x=2,x=5
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Cheers,
Stan H.
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