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Simplifying 6x2 + -11x + -9 = 0 Reorder the terms: -9 + -11x + 6x2 = 0 Solving -9 + -11x + 6x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -1.5 + -1.833333333x + x2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + -1.833333333x + 1.5 + x2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + -1.833333333x + x2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + -1.833333333x + x2 = 0 + 1.5 -1.833333333x + x2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 -1.833333333x + x2 = 1.5 The x term is -1.833333333x. Take half its coefficient (-0.9166666665). Square it (0.8402777775) and add it to both sides. Add '0.8402777775' to each side of the equation. -1.833333333x + 0.8402777775 + x2 = 1.5 + 0.8402777775 Reorder the terms: 0.8402777775 + -1.833333333x + x2 = 1.5 + 0.8402777775 Combine like terms: 1.5 + 0.8402777775 = 2.3402777775 0.8402777775 + -1.833333333x + x2 = 2.3402777775 Factor a perfect square on the left side: (x + -0.9166666665)(x + -0.9166666665) = 2.3402777775 Calculate the square root of the right side: 1.529796646 Break this problem into two subproblems by setting (x + -0.9166666665) equal to 1.529796646 and -1.529796646.Subproblem 1
x + -0.9166666665 = 1.529796646 Simplifying x + -0.9166666665 = 1.529796646 Reorder the terms: -0.9166666665 + x = 1.529796646 Solving -0.9166666665 + x = 1.529796646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9166666665' to each side of the equation. -0.9166666665 + 0.9166666665 + x = 1.529796646 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + x = 1.529796646 + 0.9166666665 x = 1.529796646 + 0.9166666665 Combine like terms: 1.529796646 + 0.9166666665 = 2.4464633125 x = 2.4464633125 Simplifying x = 2.4464633125Subproblem 2
x + -0.9166666665 = -1.529796646 Simplifying x + -0.9166666665 = -1.529796646 Reorder the terms: -0.9166666665 + x = -1.529796646 Solving -0.9166666665 + x = -1.529796646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9166666665' to each side of the equation. -0.9166666665 + 0.9166666665 + x = -1.529796646 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + x = -1.529796646 + 0.9166666665 x = -1.529796646 + 0.9166666665 Combine like terms: -1.529796646 + 0.9166666665 = -0.6131299795 x = -0.6131299795 Simplifying x = -0.6131299795Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.4464633125, -0.6131299795}
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