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Simplifying 2a2 + -1a + -22 = 0 Reorder the terms: -22 + -1a + 2a2 = 0 Solving -22 + -1a + 2a2 = 0 Solving for variable 'a'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -11 + -0.5a + a2 = 0 Move the constant term to the right: Add '11' to each side of the equation. -11 + -0.5a + 11 + a2 = 0 + 11 Reorder the terms: -11 + 11 + -0.5a + a2 = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -0.5a + a2 = 0 + 11 -0.5a + a2 = 0 + 11 Combine like terms: 0 + 11 = 11 -0.5a + a2 = 11 The a term is -0.5a. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5a + 0.0625 + a2 = 11 + 0.0625 Reorder the terms: 0.0625 + -0.5a + a2 = 11 + 0.0625 Combine like terms: 11 + 0.0625 = 11.0625 0.0625 + -0.5a + a2 = 11.0625 Factor a perfect square on the left side: (a + -0.25)(a + -0.25) = 11.0625 Calculate the square root of the right side: 3.326033674 Break this problem into two subproblems by setting (a + -0.25) equal to 3.326033674 and -3.326033674.Subproblem 1
a + -0.25 = 3.326033674 Simplifying a + -0.25 = 3.326033674 Reorder the terms: -0.25 + a = 3.326033674 Solving -0.25 + a = 3.326033674 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + a = 3.326033674 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + a = 3.326033674 + 0.25 a = 3.326033674 + 0.25 Combine like terms: 3.326033674 + 0.25 = 3.576033674 a = 3.576033674 Simplifying a = 3.576033674Subproblem 2
a + -0.25 = -3.326033674 Simplifying a + -0.25 = -3.326033674 Reorder the terms: -0.25 + a = -3.326033674 Solving -0.25 + a = -3.326033674 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + a = -3.326033674 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + a = -3.326033674 + 0.25 a = -3.326033674 + 0.25 Combine like terms: -3.326033674 + 0.25 = -3.076033674 a = -3.076033674 Simplifying a = -3.076033674Solution
The solution to the problem is based on the solutions from the subproblems. a = {3.576033674, -3.076033674}
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