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Simplifying x2 + (-6x) + 9 = 7 Reorder the terms: 9 + (-6x) + x2 = 7 Solving 9 + (-6x) + x2 = 7 Solving for variable 'x'. Reorder the terms: 9 + -7 + (-6x) + x2 = 7 + -7 Combine like terms: 9 + -7 = 2 2 + (-6x) + x2 = 7 + -7 Combine like terms: 7 + -7 = 0 2 + (-6x) + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + (-6x) + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + (-6x) + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + (-6x) + x2 = 0 + -2 (-6x) + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 (-6x) + x2 = -2 The x term is (-6x). Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. (-6x) + 9 + x2 = -2 + 9 Reorder the terms: 9 + (-6x) + x2 = -2 + 9 Combine like terms: -2 + 9 = 7 9 + (-6x) + x2 = 7 Factor a perfect square on the left side: (x + -3)(x + -3) = 7 Calculate the square root of the right side: 2.645751311 Break this problem into two subproblems by setting (x + -3) equal to 2.645751311 and -2.645751311.Subproblem 1
x + -3 = 2.645751311 Simplifying x + -3 = 2.645751311 Reorder the terms: -3 + x = 2.645751311 Solving -3 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.645751311 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.645751311 + 3 x = 2.645751311 + 3 Combine like terms: 2.645751311 + 3 = 5.645751311 x = 5.645751311 Simplifying x = 5.645751311Subproblem 2
x + -3 = -2.645751311 Simplifying x + -3 = -2.645751311 Reorder the terms: -3 + x = -2.645751311 Solving -3 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.645751311 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.645751311 + 3 x = -2.645751311 + 3 Combine like terms: -2.645751311 + 3 = 0.354248689 x = 0.354248689 Simplifying x = 0.354248689Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.645751311, 0.354248689}
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