SOLUTION: What number(s) is forbidden (undefined) for x to be for: (2x^4 + 4x) divided by (x^3 + 27)

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Question 279938: What number(s) is forbidden (undefined) for x to be for:

(2x^4 + 4x) divided by (x^3 + 27)
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x^3+27 can't be equal to zero
x^3+27=0
x^3=-27
x can't be -3