SOLUTION: Find f ' (x) andf"(x). f (x)= 9 + 3x - 3x^3 please solve this step by step

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Question 1125302: Find f ' (x) andf"(x).
f (x)= 9 + 3x - 3x^3
please solve this step by step
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find f'(x) and f"(x).
f(x)= 9 + 3x - 3x^3
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derivative of x%5En+=+n%2Ax%5E%28n-1%29
1st derivatuve = 0 + 3 - 9x^2 = 3 - 9x^2
2nd derivative = -18x