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Simplifying 5a(a + -1) = 2(a + 3) Reorder the terms: 5a(-1 + a) = 2(a + 3) (-1 * 5a + a * 5a) = 2(a + 3) (-5a + 5a2) = 2(a + 3) Reorder the terms: -5a + 5a2 = 2(3 + a) -5a + 5a2 = (3 * 2 + a * 2) -5a + 5a2 = (6 + 2a) Solving -5a + 5a2 = 6 + 2a Solving for variable 'a'. Reorder the terms: -6 + -5a + -2a + 5a2 = 6 + 2a + -6 + -2a Combine like terms: -5a + -2a = -7a -6 + -7a + 5a2 = 6 + 2a + -6 + -2a Reorder the terms: -6 + -7a + 5a2 = 6 + -6 + 2a + -2a Combine like terms: 6 + -6 = 0 -6 + -7a + 5a2 = 0 + 2a + -2a -6 + -7a + 5a2 = 2a + -2a Combine like terms: 2a + -2a = 0 -6 + -7a + 5a2 = 0 Factor a trinomial. (-3 + -5a)(2 + -1a) = 0Subproblem 1
Set the factor '(-3 + -5a)' equal to zero and attempt to solve: Simplifying -3 + -5a = 0 Solving -3 + -5a = 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 + -5a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -5a = 0 + 3 -5a = 0 + 3 Combine like terms: 0 + 3 = 3 -5a = 3 Divide each side by '-5'. a = -0.6 Simplifying a = -0.6Subproblem 2
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 = 2Solution
a = {-0.6, 2}
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