What are the solutions to the equation x^2 + 5x - 6 = 0?
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How many hours will it take for a race car to reach its maximum speed of 200 mph if it starts from rest and accelerates at a constant rate of 20 mph^2?
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Math question: What is the maximum value of the function f(x) = -2x^2 + 8x + 5 in the interval [0, 5]?