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Simplifying 4x4 + -16x3 + 7x2 + 20 = 0 Reorder the terms: 20 + 7x2 + -16x3 + 4x4 = 0 Solving 20 + 7x2 + -16x3 + 4x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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