SOLUTION: Is -1/2 a zero of f(x) = 2x^4 + 5x^3 - 5x - 2? Justify your answer.

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Question 919937: Is -1/2 a zero of f(x) = 2x^4 + 5x^3 - 5x - 2? Justify your answer.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate f%28-1%2F2%29 and find the result. Zero or nonzero?
Either it zero or it is not zero.