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Simplifying 15a * a + -3a = 3 + -7a Multiply a * a 15a2 + -3a = 3 + -7a Reorder the terms: -3a + 15a2 = 3 + -7a Solving -3a + 15a2 = 3 + -7a Solving for variable 'a'. Reorder the terms: -3 + -3a + 7a + 15a2 = 3 + -7a + -3 + 7a Combine like terms: -3a + 7a = 4a -3 + 4a + 15a2 = 3 + -7a + -3 + 7a Reorder the terms: -3 + 4a + 15a2 = 3 + -3 + -7a + 7a Combine like terms: 3 + -3 = 0 -3 + 4a + 15a2 = 0 + -7a + 7a -3 + 4a + 15a2 = -7a + 7a Combine like terms: -7a + 7a = 0 -3 + 4a + 15a2 = 0 Factor a trinomial. (-3 + -5a)(1 + -3a) = 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 '(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 = 0.3333333333Solution
a = {-0.6, 0.3333333333}
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