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Simplifying 3a2 + -13a + 12 = -2 Reorder the terms: 12 + -13a + 3a2 = -2 Solving 12 + -13a + 3a2 = -2 Solving for variable 'a'. Reorder the terms: 12 + 2 + -13a + 3a2 = -2 + 2 Combine like terms: 12 + 2 = 14 14 + -13a + 3a2 = -2 + 2 Combine like terms: -2 + 2 = 0 14 + -13a + 3a2 = 0 Factor a trinomial. (2 + -1a)(7 + -3a) = 0Subproblem 1
Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2Subproblem 2
Set the factor '(7 + -3a)' equal to zero and attempt to solve: Simplifying 7 + -3a = 0 Solving 7 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3a = 0 + -7 -3a = 0 + -7 Combine like terms: 0 + -7 = -7 -3a = -7 Divide each side by '-3'. a = 2.333333333 Simplifying a = 2.333333333Solution
a = {2, 2.333333333}
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