Question: Question 13 (Mandatory) (3 points) Let /(x) = 2x3 - 7x3 + 4x a. On what interval(s) is f'(x) > 0? b. On what interval(s)

Question 13 (Mandatory) (3 points) Let /(x) = 2x3 - 7x3 + 4x a. On what interval(s) is f'(x) > 0? b. On what interval(s) is fx) decreasing? c. On what interval(s) is f"(x)

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