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Simplifying (4a2 + -12a + 9) = 3 Reorder the terms: (9 + -12a + 4a2) = 3 Remove parenthesis around (9 + -12a + 4a2) 9 + -12a + 4a2 = 3 Solving 9 + -12a + 4a2 = 3 Solving for variable 'a'. Reorder the terms: 9 + -3 + -12a + 4a2 = 3 + -3 Combine like terms: 9 + -3 = 6 6 + -12a + 4a2 = 3 + -3 Combine like terms: 3 + -3 = 0 6 + -12a + 4a2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(3 + -6a + 2a2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(3 + -6a + 2a2)' equal to zero and attempt to solve: Simplifying 3 + -6a + 2a2 = 0 Solving 3 + -6a + 2a2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 1.5 + -3a + a2 = 0 Move the constant term to the right: Add '-1.5' to each side of the equation. 1.5 + -3a + -1.5 + a2 = 0 + -1.5 Reorder the terms: 1.5 + -1.5 + -3a + a2 = 0 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + -3a + a2 = 0 + -1.5 -3a + a2 = 0 + -1.5 Combine like terms: 0 + -1.5 = -1.5 -3a + a2 = -1.5 The a term is -3a. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3a + 2.25 + a2 = -1.5 + 2.25 Reorder the terms: 2.25 + -3a + a2 = -1.5 + 2.25 Combine like terms: -1.5 + 2.25 = 0.75 2.25 + -3a + a2 = 0.75 Factor a perfect square on the left side: (a + -1.5)(a + -1.5) = 0.75 Calculate the square root of the right side: 0.866025404 Break this problem into two subproblems by setting (a + -1.5) equal to 0.866025404 and -0.866025404.Subproblem 1
a + -1.5 = 0.866025404 Simplifying a + -1.5 = 0.866025404 Reorder the terms: -1.5 + a = 0.866025404 Solving -1.5 + a = 0.866025404 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + a = 0.866025404 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + a = 0.866025404 + 1.5 a = 0.866025404 + 1.5 Combine like terms: 0.866025404 + 1.5 = 2.366025404 a = 2.366025404 Simplifying a = 2.366025404Subproblem 2
a + -1.5 = -0.866025404 Simplifying a + -1.5 = -0.866025404 Reorder the terms: -1.5 + a = -0.866025404 Solving -1.5 + a = -0.866025404 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + a = -0.866025404 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + a = -0.866025404 + 1.5 a = -0.866025404 + 1.5 Combine like terms: -0.866025404 + 1.5 = 0.633974596 a = 0.633974596 Simplifying a = 0.633974596Solution
The solution to the problem is based on the solutions from the subproblems. a = {2.366025404, 0.633974596}Solution
a = {2.366025404, 0.633974596}
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