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Simplifying a(3a + -11) = 20 Reorder the terms: a(-11 + 3a) = 20 (-11 * a + 3a * a) = 20 (-11a + 3a2) = 20 Solving -11a + 3a2 = 20 Solving for variable 'a'. Reorder the terms: -20 + -11a + 3a2 = 20 + -20 Combine like terms: 20 + -20 = 0 -20 + -11a + 3a2 = 0 Factor a trinomial. (-4 + -3a)(5 + -1a) = 0Subproblem 1
Set the factor '(-4 + -3a)' equal to zero and attempt to solve: Simplifying -4 + -3a = 0 Solving -4 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3a = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3a = 0 + 4 -3a = 0 + 4 Combine like terms: 0 + 4 = 4 -3a = 4 Divide each side by '-3'. a = -1.333333333 Simplifying a = -1.333333333Subproblem 2
Set the factor '(5 + -1a)' equal to zero and attempt to solve: Simplifying 5 + -1a = 0 Solving 5 + -1a = 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 + -1a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1a = 0 + -5 -1a = 0 + -5 Combine like terms: 0 + -5 = -5 -1a = -5 Divide each side by '-1'. a = 5 Simplifying a = 5Solution
a = {-1.333333333, 5}
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