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Simplifying 2a2 + -1a + -13 = 2 Reorder the terms: -13 + -1a + 2a2 = 2 Solving -13 + -1a + 2a2 = 2 Solving for variable 'a'. Reorder the terms: -13 + -2 + -1a + 2a2 = 2 + -2 Combine like terms: -13 + -2 = -15 -15 + -1a + 2a2 = 2 + -2 Combine like terms: 2 + -2 = 0 -15 + -1a + 2a2 = 0 Factor a trinomial. (-5 + -2a)(3 + -1a) = 0Subproblem 1
Set the factor '(-5 + -2a)' equal to zero and attempt to solve: Simplifying -5 + -2a = 0 Solving -5 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2a = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2a = 0 + 5 -2a = 0 + 5 Combine like terms: 0 + 5 = 5 -2a = 5 Divide each side by '-2'. a = -2.5 Simplifying a = -2.5Subproblem 2
Set the factor '(3 + -1a)' equal to zero and attempt to solve: Simplifying 3 + -1a = 0 Solving 3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1a = 0 + -3 -1a = 0 + -3 Combine like terms: 0 + -3 = -3 -1a = -3 Divide each side by '-1'. a = 3 Simplifying a = 3Solution
a = {-2.5, 3}
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