Math question: What is the smallest positive integer solution to the equation x^n + y^n = z^n, where n > 2, according to Fermat's Last Theorem proposed in 1637?
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Question: Find the cube root of -125 and evaluate the function at x = 3.
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What is the limit of (3x^2 + 4x - 1)/(x^2 + 5x - 6) as x approaches 2?