What is the value of the function f(x) = 2x^2 - 5x + 3 when x = 4?
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What is the derivative of f(x) = 5x^3 - 10x^2 + 3x - 4?
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What is the theorem that states the median of a triangle divides the opposite side into two segments, such that the length of each segment is proportional to the length of the adjacent sides?