What is the minimum value of the function f(x) = 2x^2 - 3x + 1 on the interval [0,5]?
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Math question: Solve the cubic equation x^3 + 2x^2 + 5x + 6 = 0.
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Math Question: In a triangle ABC, side a has length 5, side b has length 7, and ∠C measures 60 degrees. Find the length of side c using the Cosine Law.