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Simplifying A2 + -5A + 9 = 6 Reorder the terms: 9 + -5A + A2 = 6 Solving 9 + -5A + A2 = 6 Solving for variable 'A'. Reorder the terms: 9 + -6 + -5A + A2 = 6 + -6 Combine like terms: 9 + -6 = 3 3 + -5A + A2 = 6 + -6 Combine like terms: 6 + -6 = 0 3 + -5A + A2 = 0 Begin completing the square. Move the constant term to the right: Add '-3' to each side of the equation. 3 + -5A + -3 + A2 = 0 + -3 Reorder the terms: 3 + -3 + -5A + A2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5A + A2 = 0 + -3 -5A + A2 = 0 + -3 Combine like terms: 0 + -3 = -3 -5A + A2 = -3 The A term is -5A. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5A + 6.25 + A2 = -3 + 6.25 Reorder the terms: 6.25 + -5A + A2 = -3 + 6.25 Combine like terms: -3 + 6.25 = 3.25 6.25 + -5A + A2 = 3.25 Factor a perfect square on the left side: (A + -2.5)(A + -2.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (A + -2.5) equal to 1.802775638 and -1.802775638.Subproblem 1
A + -2.5 = 1.802775638 Simplifying A + -2.5 = 1.802775638 Reorder the terms: -2.5 + A = 1.802775638 Solving -2.5 + A = 1.802775638 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + A = 1.802775638 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + A = 1.802775638 + 2.5 A = 1.802775638 + 2.5 Combine like terms: 1.802775638 + 2.5 = 4.302775638 A = 4.302775638 Simplifying A = 4.302775638Subproblem 2
A + -2.5 = -1.802775638 Simplifying A + -2.5 = -1.802775638 Reorder the terms: -2.5 + A = -1.802775638 Solving -2.5 + A = -1.802775638 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + A = -1.802775638 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + A = -1.802775638 + 2.5 A = -1.802775638 + 2.5 Combine like terms: -1.802775638 + 2.5 = 0.697224362 A = 0.697224362 Simplifying A = 0.697224362Solution
The solution to the problem is based on the solutions from the subproblems. A = {4.302775638, 0.697224362}
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