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Simplifying 3a(2a + -5) + -1(2a + -5) = 0 Reorder the terms: 3a(-5 + 2a) + -1(2a + -5) = 0 (-5 * 3a + 2a * 3a) + -1(2a + -5) = 0 (-15a + 6a2) + -1(2a + -5) = 0 Reorder the terms: -15a + 6a2 + -1(-5 + 2a) = 0 -15a + 6a2 + (-5 * -1 + 2a * -1) = 0 -15a + 6a2 + (5 + -2a) = 0 Reorder the terms: 5 + -15a + -2a + 6a2 = 0 Combine like terms: -15a + -2a = -17a 5 + -17a + 6a2 = 0 Solving 5 + -17a + 6a2 = 0 Solving for variable 'a'. Factor a trinomial. (1 + -3a)(5 + -2a) = 0Subproblem 1
Set the factor '(1 + -3a)' equal to zero and attempt to solve: Simplifying 1 + -3a = 0 Solving 1 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3a = 0 + -1 -3a = 0 + -1 Combine like terms: 0 + -1 = -1 -3a = -1 Divide each side by '-3'. a = 0.3333333333 Simplifying a = 0.3333333333Subproblem 2
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 = 2.5Solution
a = {0.3333333333, 2.5}
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