What are the solutions for the equation x^3 - 2x^2 + 3x - 4 = 0?
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Question: If vector A has a magnitude of 10 units pointing east, vector B has a magnitude of 5 units pointing north, and vector C has a magnitude of 7 units pointing south, what is the resultant vector's magnitude and direction?
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Math question: Find the dot product of two vectors v = (3, -2) and u = (5, 1).