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Simplifying (a + 3)(a2 + -7a + 7) = 0 Reorder the terms: (3 + a)(a2 + -7a + 7) = 0 Reorder the terms: (3 + a)(7 + -7a + a2) = 0 Multiply (3 + a) * (7 + -7a + a2) (3(7 + -7a + a2) + a(7 + -7a + a2)) = 0 ((7 * 3 + -7a * 3 + a2 * 3) + a(7 + -7a + a2)) = 0 ((21 + -21a + 3a2) + a(7 + -7a + a2)) = 0 (21 + -21a + 3a2 + (7 * a + -7a * a + a2 * a)) = 0 (21 + -21a + 3a2 + (7a + -7a2 + a3)) = 0 Reorder the terms: (21 + -21a + 7a + 3a2 + -7a2 + a3) = 0 Combine like terms: -21a + 7a = -14a (21 + -14a + 3a2 + -7a2 + a3) = 0 Combine like terms: 3a2 + -7a2 = -4a2 (21 + -14a + -4a2 + a3) = 0 Solving 21 + -14a + -4a2 + a3 = 0 Solving for variable 'a'. The solution to this equation could not be determined.
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