Math question: Solve the inequality 3x + 2 < 7 for x.
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Question: Find the 4th derivative of the function f(x) = 3x^5 - 2x^3 + 7x^2 - 4x + 1.
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Math question: What is the smallest positive integer solution for x, y, and z in the equation x^n + y^n = z^n, where n > 2 according to Fermat's Theorem?