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Simplifying x2 + (5 + -1x)(5 + -1x) = 26 Multiply (5 + -1x) * (5 + -1x) x2 + (5(5 + -1x) + -1x * (5 + -1x)) = 26 x2 + ((5 * 5 + -1x * 5) + -1x * (5 + -1x)) = 26 x2 + ((25 + -5x) + -1x * (5 + -1x)) = 26 x2 + (25 + -5x + (5 * -1x + -1x * -1x)) = 26 x2 + (25 + -5x + (-5x + 1x2)) = 26 Combine like terms: -5x + -5x = -10x x2 + (25 + -10x + 1x2) = 26 Reorder the terms: 25 + -10x + x2 + 1x2 = 26 Combine like terms: x2 + 1x2 = 2x2 25 + -10x + 2x2 = 26 Solving 25 + -10x + 2x2 = 26 Solving for variable 'x'. Reorder the terms: 25 + -26 + -10x + 2x2 = 26 + -26 Combine like terms: 25 + -26 = -1 -1 + -10x + 2x2 = 26 + -26 Combine like terms: 26 + -26 = 0 -1 + -10x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -0.5 + -5x + x2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + -5x + 0.5 + x2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + -5x + x2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + -5x + x2 = 0 + 0.5 -5x + x2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 -5x + x2 = 0.5 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = 0.5 + 6.25 Reorder the terms: 6.25 + -5x + x2 = 0.5 + 6.25 Combine like terms: 0.5 + 6.25 = 6.75 6.25 + -5x + x2 = 6.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 6.75 Calculate the square root of the right side: 2.598076211 Break this problem into two subproblems by setting (x + -2.5) equal to 2.598076211 and -2.598076211.Subproblem 1
x + -2.5 = 2.598076211 Simplifying x + -2.5 = 2.598076211 Reorder the terms: -2.5 + x = 2.598076211 Solving -2.5 + x = 2.598076211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.598076211 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.598076211 + 2.5 x = 2.598076211 + 2.5 Combine like terms: 2.598076211 + 2.5 = 5.098076211 x = 5.098076211 Simplifying x = 5.098076211Subproblem 2
x + -2.5 = -2.598076211 Simplifying x + -2.5 = -2.598076211 Reorder the terms: -2.5 + x = -2.598076211 Solving -2.5 + x = -2.598076211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.598076211 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.598076211 + 2.5 x = -2.598076211 + 2.5 Combine like terms: -2.598076211 + 2.5 = -0.098076211 x = -0.098076211 Simplifying x = -0.098076211Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.098076211, -0.098076211}
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