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Simplifying 4x2 + 17x + -124 = 0 Reorder the terms: -124 + 17x + 4x2 = 0 Solving -124 + 17x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -31 + 4.25x + x2 = 0 Move the constant term to the right: Add '31' to each side of the equation. -31 + 4.25x + 31 + x2 = 0 + 31 Reorder the terms: -31 + 31 + 4.25x + x2 = 0 + 31 Combine like terms: -31 + 31 = 0 0 + 4.25x + x2 = 0 + 31 4.25x + x2 = 0 + 31 Combine like terms: 0 + 31 = 31 4.25x + x2 = 31 The x term is 4.25x. Take half its coefficient (2.125). Square it (4.515625) and add it to both sides. Add '4.515625' to each side of the equation. 4.25x + 4.515625 + x2 = 31 + 4.515625 Reorder the terms: 4.515625 + 4.25x + x2 = 31 + 4.515625 Combine like terms: 31 + 4.515625 = 35.515625 4.515625 + 4.25x + x2 = 35.515625 Factor a perfect square on the left side: (x + 2.125)(x + 2.125) = 35.515625 Calculate the square root of the right side: 5.959498721 Break this problem into two subproblems by setting (x + 2.125) equal to 5.959498721 and -5.959498721.Subproblem 1
x + 2.125 = 5.959498721 Simplifying x + 2.125 = 5.959498721 Reorder the terms: 2.125 + x = 5.959498721 Solving 2.125 + x = 5.959498721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = 5.959498721 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 5.959498721 + -2.125 x = 5.959498721 + -2.125 Combine like terms: 5.959498721 + -2.125 = 3.834498721 x = 3.834498721 Simplifying x = 3.834498721Subproblem 2
x + 2.125 = -5.959498721 Simplifying x + 2.125 = -5.959498721 Reorder the terms: 2.125 + x = -5.959498721 Solving 2.125 + x = -5.959498721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = -5.959498721 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -5.959498721 + -2.125 x = -5.959498721 + -2.125 Combine like terms: -5.959498721 + -2.125 = -8.084498721 x = -8.084498721 Simplifying x = -8.084498721Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.834498721, -8.084498721}
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