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Simplifying (a + 3)(a2 + -3a + 9) = 0 Reorder the terms: (3 + a)(a2 + -3a + 9) = 0 Reorder the terms: (3 + a)(9 + -3a + a2) = 0 Multiply (3 + a) * (9 + -3a + a2) (3(9 + -3a + a2) + a(9 + -3a + a2)) = 0 ((9 * 3 + -3a * 3 + a2 * 3) + a(9 + -3a + a2)) = 0 ((27 + -9a + 3a2) + a(9 + -3a + a2)) = 0 (27 + -9a + 3a2 + (9 * a + -3a * a + a2 * a)) = 0 (27 + -9a + 3a2 + (9a + -3a2 + a3)) = 0 Reorder the terms: (27 + -9a + 9a + 3a2 + -3a2 + a3) = 0 Combine like terms: -9a + 9a = 0 (27 + 0 + 3a2 + -3a2 + a3) = 0 (27 + 3a2 + -3a2 + a3) = 0 Combine like terms: 3a2 + -3a2 = 0 (27 + 0 + a3) = 0 (27 + a3) = 0 Solving 27 + a3 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-27' to each side of the equation. 27 + -27 + a3 = 0 + -27 Combine like terms: 27 + -27 = 0 0 + a3 = 0 + -27 a3 = 0 + -27 Combine like terms: 0 + -27 = -27 a3 = -27 Simplifying a3 = -27 Reorder the terms: 27 + a3 = -27 + 27 Combine like terms: -27 + 27 = 0 27 + a3 = 0 The solution to this equation could not be determined.
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