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Question 939291: What is the domain of the function (in interval notation): f(x)=(2x^3-5)/(x^2+2x-15)?
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! What is the domain of the function (in interval notation): f(x)=(2x^3-5)/(x^2+2x-15)?
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The only restriction here is that the denominator≠0
set denominator=0, then solve for x
x^2+2x-15=0
(x+5)(x-3)=0
x≠-5
x≠3
Domain: (-∞,-5) U (-5,3) U (3,∞)
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