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Simplifying 2x2 + 2x + -119 = 0 Reorder the terms: -119 + 2x + 2x2 = 0 Solving -119 + 2x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -59.5 + x + x2 = 0 Move the constant term to the right: Add '59.5' to each side of the equation. -59.5 + x + 59.5 + x2 = 0 + 59.5 Reorder the terms: -59.5 + 59.5 + x + x2 = 0 + 59.5 Combine like terms: -59.5 + 59.5 = 0.0 0.0 + x + x2 = 0 + 59.5 x + x2 = 0 + 59.5 Combine like terms: 0 + 59.5 = 59.5 x + x2 = 59.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = 59.5 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 59.5 + 0.25 Combine like terms: 59.5 + 0.25 = 59.75 1.25 + x2 = 59.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 59.75 Calculate the square root of the right side: 7.729812417 Break this problem into two subproblems by setting (x + 0.5) equal to 7.729812417 and -7.729812417.Subproblem 1
x + 0.5 = 7.729812417 Simplifying x + 0.5 = 7.729812417 Reorder the terms: 0.5 + x = 7.729812417 Solving 0.5 + x = 7.729812417 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 7.729812417 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 7.729812417 + -0.5 x = 7.729812417 + -0.5 Combine like terms: 7.729812417 + -0.5 = 7.229812417 x = 7.229812417 Simplifying x = 7.229812417Subproblem 2
x + 0.5 = -7.729812417 Simplifying x + 0.5 = -7.729812417 Reorder the terms: 0.5 + x = -7.729812417 Solving 0.5 + x = -7.729812417 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -7.729812417 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -7.729812417 + -0.5 x = -7.729812417 + -0.5 Combine like terms: -7.729812417 + -0.5 = -8.229812417 x = -8.229812417 Simplifying x = -8.229812417Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.229812417, -8.229812417}
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