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Simplifying 4x4 + -7x2 + 5x + -9 = 0 Reorder the terms: -9 + 5x + -7x2 + 4x4 = 0 Solving -9 + 5x + -7x2 + 4x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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