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Simplifying x4 + -1ax2 + 12a + -3a2 = 0 Reorder the terms: 12a + -1ax2 + -3a2 + x4 = 0 Solving 12a + -1ax2 + -3a2 + x4 = 0 Solving for variable 'a'. The solution to this equation could not be determined.
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