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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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