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Simplifying 121x2 + -121x + 11 = 0 Reorder the terms: 11 + -121x + 121x2 = 0 Solving 11 + -121x + 121x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '11'. 11(1 + -11x + 11x2) = 0 Ignore the factor 11.Subproblem 1
Set the factor '(1 + -11x + 11x2)' equal to zero and attempt to solve: Simplifying 1 + -11x + 11x2 = 0 Solving 1 + -11x + 11x2 = 0 Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. 0.09090909091 + -1x + x2 = 0 Move the constant term to the right: Add '-0.09090909091' to each side of the equation. 0.09090909091 + -1x + -0.09090909091 + x2 = 0 + -0.09090909091 Reorder the terms: 0.09090909091 + -0.09090909091 + -1x + x2 = 0 + -0.09090909091 Combine like terms: 0.09090909091 + -0.09090909091 = 0.00000000000 0.00000000000 + -1x + x2 = 0 + -0.09090909091 -1x + x2 = 0 + -0.09090909091 Combine like terms: 0 + -0.09090909091 = -0.09090909091 -1x + x2 = -0.09090909091 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = -0.09090909091 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -0.09090909091 + 0.25 Combine like terms: -0.09090909091 + 0.25 = 0.15909090909 0.25 + -1x + x2 = 0.15909090909 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 0.15909090909 Calculate the square root of the right side: 0.398862018 Break this problem into two subproblems by setting (x + -0.5) equal to 0.398862018 and -0.398862018.Subproblem 1
x + -0.5 = 0.398862018 Simplifying x + -0.5 = 0.398862018 Reorder the terms: -0.5 + x = 0.398862018 Solving -0.5 + x = 0.398862018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 0.398862018 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.398862018 + 0.5 x = 0.398862018 + 0.5 Combine like terms: 0.398862018 + 0.5 = 0.898862018 x = 0.898862018 Simplifying x = 0.898862018Subproblem 2
x + -0.5 = -0.398862018 Simplifying x + -0.5 = -0.398862018 Reorder the terms: -0.5 + x = -0.398862018 Solving -0.5 + x = -0.398862018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -0.398862018 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.398862018 + 0.5 x = -0.398862018 + 0.5 Combine like terms: -0.398862018 + 0.5 = 0.101137982 x = 0.101137982 Simplifying x = 0.101137982Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.898862018, 0.101137982}Solution
x = {0.898862018, 0.101137982}
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