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Simplifying 9x2 + -11x + 1 = 0 Reorder the terms: 1 + -11x + 9x2 = 0 Solving 1 + -11x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 0.1111111111 + -1.222222222x + x2 = 0 Move the constant term to the right: Add '-0.1111111111' to each side of the equation. 0.1111111111 + -1.222222222x + -0.1111111111 + x2 = 0 + -0.1111111111 Reorder the terms: 0.1111111111 + -0.1111111111 + -1.222222222x + x2 = 0 + -0.1111111111 Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000 0.0000000000 + -1.222222222x + x2 = 0 + -0.1111111111 -1.222222222x + x2 = 0 + -0.1111111111 Combine like terms: 0 + -0.1111111111 = -0.1111111111 -1.222222222x + x2 = -0.1111111111 The x term is -1.222222222x. Take half its coefficient (-0.611111111). Square it (0.3734567900) and add it to both sides. Add '0.3734567900' to each side of the equation. -1.222222222x + 0.3734567900 + x2 = -0.1111111111 + 0.3734567900 Reorder the terms: 0.3734567900 + -1.222222222x + x2 = -0.1111111111 + 0.3734567900 Combine like terms: -0.1111111111 + 0.3734567900 = 0.2623456789 0.3734567900 + -1.222222222x + x2 = 0.2623456789 Factor a perfect square on the left side: (x + -0.611111111)(x + -0.611111111) = 0.2623456789 Calculate the square root of the right side: 0.512196914 Break this problem into two subproblems by setting (x + -0.611111111) equal to 0.512196914 and -0.512196914.Subproblem 1
x + -0.611111111 = 0.512196914 Simplifying x + -0.611111111 = 0.512196914 Reorder the terms: -0.611111111 + x = 0.512196914 Solving -0.611111111 + x = 0.512196914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.611111111' to each side of the equation. -0.611111111 + 0.611111111 + x = 0.512196914 + 0.611111111 Combine like terms: -0.611111111 + 0.611111111 = 0.000000000 0.000000000 + x = 0.512196914 + 0.611111111 x = 0.512196914 + 0.611111111 Combine like terms: 0.512196914 + 0.611111111 = 1.123308025 x = 1.123308025 Simplifying x = 1.123308025Subproblem 2
x + -0.611111111 = -0.512196914 Simplifying x + -0.611111111 = -0.512196914 Reorder the terms: -0.611111111 + x = -0.512196914 Solving -0.611111111 + x = -0.512196914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.611111111' to each side of the equation. -0.611111111 + 0.611111111 + x = -0.512196914 + 0.611111111 Combine like terms: -0.611111111 + 0.611111111 = 0.000000000 0.000000000 + x = -0.512196914 + 0.611111111 x = -0.512196914 + 0.611111111 Combine like terms: -0.512196914 + 0.611111111 = 0.098914197 x = 0.098914197 Simplifying x = 0.098914197Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.123308025, 0.098914197}
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