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Simplifying x2 + -13x + -132 = 0 Reorder the terms: -132 + -13x + x2 = 0 Solving -132 + -13x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '132' to each side of the equation. -132 + -13x + 132 + x2 = 0 + 132 Reorder the terms: -132 + 132 + -13x + x2 = 0 + 132 Combine like terms: -132 + 132 = 0 0 + -13x + x2 = 0 + 132 -13x + x2 = 0 + 132 Combine like terms: 0 + 132 = 132 -13x + x2 = 132 The x term is -13x. Take half its coefficient (-6.5). Square it (42.25) and add it to both sides. Add '42.25' to each side of the equation. -13x + 42.25 + x2 = 132 + 42.25 Reorder the terms: 42.25 + -13x + x2 = 132 + 42.25 Combine like terms: 132 + 42.25 = 174.25 42.25 + -13x + x2 = 174.25 Factor a perfect square on the left side: (x + -6.5)(x + -6.5) = 174.25 Calculate the square root of the right side: 13.200378782 Break this problem into two subproblems by setting (x + -6.5) equal to 13.200378782 and -13.200378782.Subproblem 1
x + -6.5 = 13.200378782 Simplifying x + -6.5 = 13.200378782 Reorder the terms: -6.5 + x = 13.200378782 Solving -6.5 + x = 13.200378782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 13.200378782 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 13.200378782 + 6.5 x = 13.200378782 + 6.5 Combine like terms: 13.200378782 + 6.5 = 19.700378782 x = 19.700378782 Simplifying x = 19.700378782Subproblem 2
x + -6.5 = -13.200378782 Simplifying x + -6.5 = -13.200378782 Reorder the terms: -6.5 + x = -13.200378782 Solving -6.5 + x = -13.200378782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -13.200378782 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -13.200378782 + 6.5 x = -13.200378782 + 6.5 Combine like terms: -13.200378782 + 6.5 = -6.700378782 x = -6.700378782 Simplifying x = -6.700378782Solution
The solution to the problem is based on the solutions from the subproblems. x = {19.700378782, -6.700378782}
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