Find the roots of the cubic equation 2x³ - 5x² + 3x + 1 = 0.
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What are the characteristics of the ellipse function with the equation (x-h)^2/a^2 + (y-k)^2/b^2 = 1, where (h,k) is the center, a is the semi-major axis length, and b is the semi-minor axis length?
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What is the probability of selecting a red ball from a bag containing 6 red balls and 4 blue balls?