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Simplifying x2 + 3x + -102 = 0 Reorder the terms: -102 + 3x + x2 = 0 Solving -102 + 3x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '102' to each side of the equation. -102 + 3x + 102 + x2 = 0 + 102 Reorder the terms: -102 + 102 + 3x + x2 = 0 + 102 Combine like terms: -102 + 102 = 0 0 + 3x + x2 = 0 + 102 3x + x2 = 0 + 102 Combine like terms: 0 + 102 = 102 3x + x2 = 102 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 = 102 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 102 + 2.25 Combine like terms: 102 + 2.25 = 104.25 2.25 + 3x + x2 = 104.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 104.25 Calculate the square root of the right side: 10.210288928 Break this problem into two subproblems by setting (x + 1.5) equal to 10.210288928 and -10.210288928.Subproblem 1
x + 1.5 = 10.210288928 Simplifying x + 1.5 = 10.210288928 Reorder the terms: 1.5 + x = 10.210288928 Solving 1.5 + x = 10.210288928 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 = 10.210288928 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 10.210288928 + -1.5 x = 10.210288928 + -1.5 Combine like terms: 10.210288928 + -1.5 = 8.710288928 x = 8.710288928 Simplifying x = 8.710288928Subproblem 2
x + 1.5 = -10.210288928 Simplifying x + 1.5 = -10.210288928 Reorder the terms: 1.5 + x = -10.210288928 Solving 1.5 + x = -10.210288928 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 = -10.210288928 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -10.210288928 + -1.5 x = -10.210288928 + -1.5 Combine like terms: -10.210288928 + -1.5 = -11.710288928 x = -11.710288928 Simplifying x = -11.710288928Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.710288928, -11.710288928}
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