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Simplifying (a2 + -4a + -1)(a2 + -4a + -1) + -16 = 0 Reorder the terms: (-1 + -4a + a2)(a2 + -4a + -1) + -16 = 0 Reorder the terms: (-1 + -4a + a2)(-1 + -4a + a2) + -16 = 0 Multiply (-1 + -4a + a2) * (-1 + -4a + a2) (-1(-1 + -4a + a2) + -4a * (-1 + -4a + a2) + a2(-1 + -4a + a2)) + -16 = 0 ((-1 * -1 + -4a * -1 + a2 * -1) + -4a * (-1 + -4a + a2) + a2(-1 + -4a + a2)) + -16 = 0 ((1 + 4a + -1a2) + -4a * (-1 + -4a + a2) + a2(-1 + -4a + a2)) + -16 = 0 (1 + 4a + -1a2 + (-1 * -4a + -4a * -4a + a2 * -4a) + a2(-1 + -4a + a2)) + -16 = 0 (1 + 4a + -1a2 + (4a + 16a2 + -4a3) + a2(-1 + -4a + a2)) + -16 = 0 (1 + 4a + -1a2 + 4a + 16a2 + -4a3 + (-1 * a2 + -4a * a2 + a2 * a2)) + -16 = 0 (1 + 4a + -1a2 + 4a + 16a2 + -4a3 + (-1a2 + -4a3 + a4)) + -16 = 0 Reorder the terms: (1 + 4a + 4a + -1a2 + 16a2 + -1a2 + -4a3 + -4a3 + a4) + -16 = 0 Combine like terms: 4a + 4a = 8a (1 + 8a + -1a2 + 16a2 + -1a2 + -4a3 + -4a3 + a4) + -16 = 0 Combine like terms: -1a2 + 16a2 = 15a2 (1 + 8a + 15a2 + -1a2 + -4a3 + -4a3 + a4) + -16 = 0 Combine like terms: 15a2 + -1a2 = 14a2 (1 + 8a + 14a2 + -4a3 + -4a3 + a4) + -16 = 0 Combine like terms: -4a3 + -4a3 = -8a3 (1 + 8a + 14a2 + -8a3 + a4) + -16 = 0 Reorder the terms: 1 + -16 + 8a + 14a2 + -8a3 + a4 = 0 Combine like terms: 1 + -16 = -15 -15 + 8a + 14a2 + -8a3 + a4 = 0 Solving -15 + 8a + 14a2 + -8a3 + a4 = 0 Solving for variable 'a'. The solution to this equation could not be determined.
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