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Simplifying x2 + -3x + -124 = 0 Reorder the terms: -124 + -3x + x2 = 0 Solving -124 + -3x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '124' to each side of the equation. -124 + -3x + 124 + x2 = 0 + 124 Reorder the terms: -124 + 124 + -3x + x2 = 0 + 124 Combine like terms: -124 + 124 = 0 0 + -3x + x2 = 0 + 124 -3x + x2 = 0 + 124 Combine like terms: 0 + 124 = 124 -3x + x2 = 124 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 = 124 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 124 + 2.25 Combine like terms: 124 + 2.25 = 126.25 2.25 + -3x + x2 = 126.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 126.25 Calculate the square root of the right side: 11.236102527 Break this problem into two subproblems by setting (x + -1.5) equal to 11.236102527 and -11.236102527.Subproblem 1
x + -1.5 = 11.236102527 Simplifying x + -1.5 = 11.236102527 Reorder the terms: -1.5 + x = 11.236102527 Solving -1.5 + x = 11.236102527 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 = 11.236102527 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 11.236102527 + 1.5 x = 11.236102527 + 1.5 Combine like terms: 11.236102527 + 1.5 = 12.736102527 x = 12.736102527 Simplifying x = 12.736102527Subproblem 2
x + -1.5 = -11.236102527 Simplifying x + -1.5 = -11.236102527 Reorder the terms: -1.5 + x = -11.236102527 Solving -1.5 + x = -11.236102527 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 = -11.236102527 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -11.236102527 + 1.5 x = -11.236102527 + 1.5 Combine like terms: -11.236102527 + 1.5 = -9.736102527 x = -9.736102527 Simplifying x = -9.736102527Solution
The solution to the problem is based on the solutions from the subproblems. x = {12.736102527, -9.736102527}
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