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Simplifying 2a(a2 + a + 4) = 0 Reorder the terms: 2a(4 + a + a2) = 0 (4 * 2a + a * 2a + a2 * 2a) = 0 (8a + 2a2 + 2a3) = 0 Solving 8a + 2a2 + 2a3 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '2a'. 2a(4 + a + a2) = 0 Ignore the factor 2.Subproblem 1
Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0Subproblem 2
Set the factor '(4 + a + a2)' equal to zero and attempt to solve: Simplifying 4 + a + a2 = 0 Solving 4 + a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + a + -4 + a2 = 0 + -4 Reorder the terms: 4 + -4 + a + a2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + a + a2 = 0 + -4 a + a2 = 0 + -4 Combine like terms: 0 + -4 = -4 a + a2 = -4 The a term is a. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. a + 0.25 + a2 = -4 + 0.25 Reorder the terms: 0.25 + a + a2 = -4 + 0.25 Combine like terms: -4 + 0.25 = -3.75 0.25 + a + a2 = -3.75 Factor a perfect square on the left side: (a + 0.5)(a + 0.5) = -3.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Solution
a = {0}
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