What is the resulting displacement when a vector of magnitude 15 units is added to a vector of magnitude 20 units, given that they are in opposite directions?
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What are the real solutions of the equation x^3 + 4x^2 - 11x - 30 = 0?
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Math question: What are the integer solutions for x, y, and z in the equation x^n + y^n = z^n, where n > 2, according to Fermat's Theorem?