Math Question: Find the extreme values of f(x) = x^3 - 6x^2 + 9x - 5 over the interval [-2, 4].
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What are the characteristics of the cubic function f(x) = x^3? How many intercepts does it have? What is the maximum number of turning points it can have? Does it have symmetry?
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Math question: Can every prime number be written as the sum of two perfect squares?