SOLUTION: h(x)=x-1/x3-9x find the domain of the function. thank you in advance

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Question 447424: h(x)=x-1/x3-9x
find the domain of the function. thank you in advance
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

domain of the function

h(x)=x-1/x3-9x

I. Cannot divide by zero

II. denominator will be zero when:

   x^3-9x = 0

  x(x^2-9)= 0

    x = 0

(x^2-9)= 0

(x-3)(x+3) = 0 x = 3 and x = -3

Domain:{x| x ≠ 3 and x ≠ -3 and x ≠ 0}