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Simplifying -1a2 + -13a = 0 Reorder the terms: -13a + -1a2 = 0 Solving -13a + -1a2 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '-1a'. -1a(13 + a) = 0 Ignore the factor -1.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 '(13 + a)' equal to zero and attempt to solve: Simplifying 13 + a = 0 Solving 13 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + a = 0 + -13 Combine like terms: 13 + -13 = 0 0 + a = 0 + -13 a = 0 + -13 Combine like terms: 0 + -13 = -13 a = -13 Simplifying a = -13Solution
a = {0, -13}
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