Question: Calculate the square root of 2589 and round to the nearest hundredth. Then, multiply the rounded value by the square root of 496 and express the result as a fraction, simplifying it as much as possible.
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Find the roots of the equation x^3 - 5x^2 + 2x - 7 = 0.
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Math question: What are the extrema (maximum and minimum) of the function f(x) = 2x^2 - 3x + 5 over the interval [0, 4]?