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Simplifying (a + 4)(a2 + -4a + 16) = 0 Reorder the terms: (4 + a)(a2 + -4a + 16) = 0 Reorder the terms: (4 + a)(16 + -4a + a2) = 0 Multiply (4 + a) * (16 + -4a + a2) (4(16 + -4a + a2) + a(16 + -4a + a2)) = 0 ((16 * 4 + -4a * 4 + a2 * 4) + a(16 + -4a + a2)) = 0 ((64 + -16a + 4a2) + a(16 + -4a + a2)) = 0 (64 + -16a + 4a2 + (16 * a + -4a * a + a2 * a)) = 0 (64 + -16a + 4a2 + (16a + -4a2 + a3)) = 0 Reorder the terms: (64 + -16a + 16a + 4a2 + -4a2 + a3) = 0 Combine like terms: -16a + 16a = 0 (64 + 0 + 4a2 + -4a2 + a3) = 0 (64 + 4a2 + -4a2 + a3) = 0 Combine like terms: 4a2 + -4a2 = 0 (64 + 0 + a3) = 0 (64 + a3) = 0 Solving 64 + a3 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-64' to each side of the equation. 64 + -64 + a3 = 0 + -64 Combine like terms: 64 + -64 = 0 0 + a3 = 0 + -64 a3 = 0 + -64 Combine like terms: 0 + -64 = -64 a3 = -64 Simplifying a3 = -64 Reorder the terms: 64 + a3 = -64 + 64 Combine like terms: -64 + 64 = 0 64 + a3 = 0 The solution to this equation could not be determined.
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