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Simplifying x6 + -5x4 + -4x2 + 20 = 0 Reorder the terms: 20 + -4x2 + -5x4 + x6 = 0 Solving 20 + -4x2 + -5x4 + x6 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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