SOLUTION: Find the domain of the function. (Enter your answer using interval notation.)
f(x) =
5x^3 − 5/ x^2 + 2x − 15
Algebra.Com
Question 777205: Find the domain of the function. (Enter your answer using interval notation.)
f(x) =
5x^3 − 5/ x^2 + 2x − 15
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Find the domain of the function. (Enter your answer using interval notation.)
f(x) = 5x^3 − 5/ x^2 + 2x − 15
function is undefined if denominator=0
so, set denominator=0, and solve for x.
x^2+2x−15=0
(x+5)(x-3)=0
x=-5
or
x=3
domain: (-∞,-5) U (-5,3) U (3,∞)
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