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Simplifying (x + 0.13) * 0.2(x + 0.13) = 0.4x + -0.051 Reorder the terms: (0.13 + x) * 0.2(x + 0.13) = 0.4x + -0.051 Reorder the terms: (0.13 + x) * 0.2(0.13 + x) = 0.4x + -0.051 Reorder the terms for easier multiplication: 0.2(0.13 + x)(0.13 + x) = 0.4x + -0.051 Multiply (0.13 + x) * (0.13 + x) 0.2(0.13(0.13 + x) + x(0.13 + x)) = 0.4x + -0.051 0.2((0.13 * 0.13 + x * 0.13) + x(0.13 + x)) = 0.4x + -0.051 0.2((0.0169 + 0.13x) + x(0.13 + x)) = 0.4x + -0.051 0.2(0.0169 + 0.13x + (0.13 * x + x * x)) = 0.4x + -0.051 0.2(0.0169 + 0.13x + (0.13x + x2)) = 0.4x + -0.051 Combine like terms: 0.13x + 0.13x = 0.26x 0.2(0.0169 + 0.26x + x2) = 0.4x + -0.051 (0.0169 * 0.2 + 0.26x * 0.2 + x2 * 0.2) = 0.4x + -0.051 (0.00338 + 0.052x + 0.2x2) = 0.4x + -0.051 Reorder the terms: 0.00338 + 0.052x + 0.2x2 = -0.051 + 0.4x Solving 0.00338 + 0.052x + 0.2x2 = -0.051 + 0.4x Solving for variable 'x'. Reorder the terms: 0.00338 + 0.051 + 0.052x + -0.4x + 0.2x2 = -0.051 + 0.4x + 0.051 + -0.4x Combine like terms: 0.00338 + 0.051 = 0.05438 0.05438 + 0.052x + -0.4x + 0.2x2 = -0.051 + 0.4x + 0.051 + -0.4x Combine like terms: 0.052x + -0.4x = -0.348x 0.05438 + -0.348x + 0.2x2 = -0.051 + 0.4x + 0.051 + -0.4x Reorder the terms: 0.05438 + -0.348x + 0.2x2 = -0.051 + 0.051 + 0.4x + -0.4x Combine like terms: -0.051 + 0.051 = 0.000 0.05438 + -0.348x + 0.2x2 = 0.000 + 0.4x + -0.4x 0.05438 + -0.348x + 0.2x2 = 0.4x + -0.4x Combine like terms: 0.4x + -0.4x = 0.0 0.05438 + -0.348x + 0.2x2 = 0.0 Begin completing the square. Divide all terms by 0.2 the coefficient of the squared term: Divide each side by '0.2'. 0.2719 + -1.74x + x2 = 0 Move the constant term to the right: Add '-0.2719' to each side of the equation. 0.2719 + -1.74x + -0.2719 + x2 = 0 + -0.2719 Reorder the terms: 0.2719 + -0.2719 + -1.74x + x2 = 0 + -0.2719 Combine like terms: 0.2719 + -0.2719 = 0.0000 0.0000 + -1.74x + x2 = 0 + -0.2719 -1.74x + x2 = 0 + -0.2719 Combine like terms: 0 + -0.2719 = -0.2719 -1.74x + x2 = -0.2719 The x term is -1.74x. Take half its coefficient (-0.87). Square it (0.7569) and add it to both sides. Add '0.7569' to each side of the equation. -1.74x + 0.7569 + x2 = -0.2719 + 0.7569 Reorder the terms: 0.7569 + -1.74x + x2 = -0.2719 + 0.7569 Combine like terms: -0.2719 + 0.7569 = 0.485 0.7569 + -1.74x + x2 = 0.485 Factor a perfect square on the left side: (x + -0.87)(x + -0.87) = 0.485 Calculate the square root of the right side: 0.696419414 Break this problem into two subproblems by setting (x + -0.87) equal to 0.696419414 and -0.696419414.Subproblem 1
x + -0.87 = 0.696419414 Simplifying x + -0.87 = 0.696419414 Reorder the terms: -0.87 + x = 0.696419414 Solving -0.87 + x = 0.696419414 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.87' to each side of the equation. -0.87 + 0.87 + x = 0.696419414 + 0.87 Combine like terms: -0.87 + 0.87 = 0.00 0.00 + x = 0.696419414 + 0.87 x = 0.696419414 + 0.87 Combine like terms: 0.696419414 + 0.87 = 1.566419414 x = 1.566419414 Simplifying x = 1.566419414Subproblem 2
x + -0.87 = -0.696419414 Simplifying x + -0.87 = -0.696419414 Reorder the terms: -0.87 + x = -0.696419414 Solving -0.87 + x = -0.696419414 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.87' to each side of the equation. -0.87 + 0.87 + x = -0.696419414 + 0.87 Combine like terms: -0.87 + 0.87 = 0.00 0.00 + x = -0.696419414 + 0.87 x = -0.696419414 + 0.87 Combine like terms: -0.696419414 + 0.87 = 0.173580586 x = 0.173580586 Simplifying x = 0.173580586Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.566419414, 0.173580586}
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