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The function f(x) = - 2x3 + 27x2 - 48x + 9 has one local minimum and one local maximum. Use the methods of Unit

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The function f(x) = - 2x3 + 27x2 - 48x + 9 has one local minimum and one local maximum. Use the methods of Unit 3 to rigorously establish what they are. Exam Demonstrate #2: (4 points) Consider the function f(x) = 12x + 30x - 300x3 + 2. Find the inflection points of f and determine the intervals of concavity for the function

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