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Simplifying (4a2 + 8a + 12) + -1(3a3 + 4a2 + 7a + -12) = 0 Reorder the terms: (12 + 8a + 4a2) + -1(3a3 + 4a2 + 7a + -12) = 0 Remove parenthesis around (12 + 8a + 4a2) 12 + 8a + 4a2 + -1(3a3 + 4a2 + 7a + -12) = 0 Reorder the terms: 12 + 8a + 4a2 + -1(-12 + 7a + 4a2 + 3a3) = 0 12 + 8a + 4a2 + (-12 * -1 + 7a * -1 + 4a2 * -1 + 3a3 * -1) = 0 12 + 8a + 4a2 + (12 + -7a + -4a2 + -3a3) = 0 Reorder the terms: 12 + 12 + 8a + -7a + 4a2 + -4a2 + -3a3 = 0 Combine like terms: 12 + 12 = 24 24 + 8a + -7a + 4a2 + -4a2 + -3a3 = 0 Combine like terms: 8a + -7a = 1a 24 + 1a + 4a2 + -4a2 + -3a3 = 0 Combine like terms: 4a2 + -4a2 = 0 24 + 1a + 0 + -3a3 = 0 24 + 1a + -3a3 = 0 Solving 24 + 1a + -3a3 = 0 Solving for variable 'a'. The solution to this equation could not be determined.
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