What is the equation of an ellipse with a center at (2, -3), major axis length of 4, and minor axis length of 2?
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Math Question: Consider a quadratic function with the graph of a parabola opening upward. Its vertex is located at (-2, 5) and one of its roots is x = 3. Find the equation of this quadratic function.
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Question: Find the square root of the sum of the squares of two consecutive odd natural numbers, where the smaller number is 'x'. (