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Simplifying 9x2 + -12x = 35 Reorder the terms: -12x + 9x2 = 35 Solving -12x + 9x2 = 35 Solving for variable 'x'. Reorder the terms: -35 + -12x + 9x2 = 35 + -35 Combine like terms: 35 + -35 = 0 -35 + -12x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -3.888888889 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '3.888888889' to each side of the equation. -3.888888889 + -1.333333333x + 3.888888889 + x2 = 0 + 3.888888889 Reorder the terms: -3.888888889 + 3.888888889 + -1.333333333x + x2 = 0 + 3.888888889 Combine like terms: -3.888888889 + 3.888888889 = 0.000000000 0.000000000 + -1.333333333x + x2 = 0 + 3.888888889 -1.333333333x + x2 = 0 + 3.888888889 Combine like terms: 0 + 3.888888889 = 3.888888889 -1.333333333x + x2 = 3.888888889 The x term is -1.333333333x. Take half its coefficient (-0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. -1.333333333x + 0.4444444442 + x2 = 3.888888889 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = 3.888888889 + 0.4444444442 Combine like terms: 3.888888889 + 0.4444444442 = 4.3333333332 0.4444444442 + -1.333333333x + x2 = 4.3333333332 Factor a perfect square on the left side: (x + -0.6666666665)(x + -0.6666666665) = 4.3333333332 Calculate the square root of the right side: 2.081665999 Break this problem into two subproblems by setting (x + -0.6666666665) equal to 2.081665999 and -2.081665999.Subproblem 1
x + -0.6666666665 = 2.081665999 Simplifying x + -0.6666666665 = 2.081665999 Reorder the terms: -0.6666666665 + x = 2.081665999 Solving -0.6666666665 + x = 2.081665999 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + x = 2.081665999 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = 2.081665999 + 0.6666666665 x = 2.081665999 + 0.6666666665 Combine like terms: 2.081665999 + 0.6666666665 = 2.7483326655 x = 2.7483326655 Simplifying x = 2.7483326655Subproblem 2
x + -0.6666666665 = -2.081665999 Simplifying x + -0.6666666665 = -2.081665999 Reorder the terms: -0.6666666665 + x = -2.081665999 Solving -0.6666666665 + x = -2.081665999 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + x = -2.081665999 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + x = -2.081665999 + 0.6666666665 x = -2.081665999 + 0.6666666665 Combine like terms: -2.081665999 + 0.6666666665 = -1.4149993325 x = -1.4149993325 Simplifying x = -1.4149993325Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.7483326655, -1.4149993325}
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