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Simplifying 4u3 + 3u2 + 20u + 15 = 0 Reorder the terms: 15 + 20u + 3u2 + 4u3 = 0 Solving 15 + 20u + 3u2 + 4u3 = 0 Solving for variable 'u'. The solution to this equation could not be determined.
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