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Simplifying x2 + 3x + -119 = 0 Reorder the terms: -119 + 3x + x2 = 0 Solving -119 + 3x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '119' to each side of the equation. -119 + 3x + 119 + x2 = 0 + 119 Reorder the terms: -119 + 119 + 3x + x2 = 0 + 119 Combine like terms: -119 + 119 = 0 0 + 3x + x2 = 0 + 119 3x + x2 = 0 + 119 Combine like terms: 0 + 119 = 119 3x + x2 = 119 The x term is 3x. 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. 3x + 2.25 + x2 = 119 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 119 + 2.25 Combine like terms: 119 + 2.25 = 121.25 2.25 + 3x + x2 = 121.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 121.25 Calculate the square root of the right side: 11.011357773 Break this problem into two subproblems by setting (x + 1.5) equal to 11.011357773 and -11.011357773.Subproblem 1
x + 1.5 = 11.011357773 Simplifying x + 1.5 = 11.011357773 Reorder the terms: 1.5 + x = 11.011357773 Solving 1.5 + x = 11.011357773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 11.011357773 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 11.011357773 + -1.5 x = 11.011357773 + -1.5 Combine like terms: 11.011357773 + -1.5 = 9.511357773 x = 9.511357773 Simplifying x = 9.511357773Subproblem 2
x + 1.5 = -11.011357773 Simplifying x + 1.5 = -11.011357773 Reorder the terms: 1.5 + x = -11.011357773 Solving 1.5 + x = -11.011357773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -11.011357773 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -11.011357773 + -1.5 x = -11.011357773 + -1.5 Combine like terms: -11.011357773 + -1.5 = -12.511357773 x = -12.511357773 Simplifying x = -12.511357773Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.511357773, -12.511357773}
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