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Simplifying x2 + 13x = 24 Reorder the terms: 13x + x2 = 24 Solving 13x + x2 = 24 Solving for variable 'x'. Reorder the terms: -24 + 13x + x2 = 24 + -24 Combine like terms: 24 + -24 = 0 -24 + 13x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '24' to each side of the equation. -24 + 13x + 24 + x2 = 0 + 24 Reorder the terms: -24 + 24 + 13x + x2 = 0 + 24 Combine like terms: -24 + 24 = 0 0 + 13x + x2 = 0 + 24 13x + x2 = 0 + 24 Combine like terms: 0 + 24 = 24 13x + x2 = 24 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 = 24 + 42.25 Reorder the terms: 42.25 + 13x + x2 = 24 + 42.25 Combine like terms: 24 + 42.25 = 66.25 42.25 + 13x + x2 = 66.25 Factor a perfect square on the left side: (x + 6.5)(x + 6.5) = 66.25 Calculate the square root of the right side: 8.139410298 Break this problem into two subproblems by setting (x + 6.5) equal to 8.139410298 and -8.139410298.Subproblem 1
x + 6.5 = 8.139410298 Simplifying x + 6.5 = 8.139410298 Reorder the terms: 6.5 + x = 8.139410298 Solving 6.5 + x = 8.139410298 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 = 8.139410298 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 8.139410298 + -6.5 x = 8.139410298 + -6.5 Combine like terms: 8.139410298 + -6.5 = 1.639410298 x = 1.639410298 Simplifying x = 1.639410298Subproblem 2
x + 6.5 = -8.139410298 Simplifying x + 6.5 = -8.139410298 Reorder the terms: 6.5 + x = -8.139410298 Solving 6.5 + x = -8.139410298 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 = -8.139410298 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -8.139410298 + -6.5 x = -8.139410298 + -6.5 Combine like terms: -8.139410298 + -6.5 = -14.639410298 x = -14.639410298 Simplifying x = -14.639410298Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.639410298, -14.639410298}
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