I need help solving this

Differentiate f(a) = 3(10x9 - 3x3) *. You do not need to expand your answer. f' (2) = Preview syntax error 0/1 Factor out the greatest common factor to simplify your answer. 0/1) f' (ac) = 0/1) Preview Enter an algebraic expression [more. . ] 0/1) syntax error 0/1) 0/1-) Points possible: 1 (0/1) This is attempt 2 of 2. Score on last attempt: (0, 0). Score in gradebook: (0, 0) , Out of: (0.5, 0.5) 17 ion Submit When you are done, click here to see a summary of your scores