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Simplifying 11x2 + -6x + 18 = 0 Reorder the terms: 18 + -6x + 11x2 = 0 Solving 18 + -6x + 11x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. 1.636363636 + -0.5454545455x + x2 = 0 Move the constant term to the right: Add '-1.636363636' to each side of the equation. 1.636363636 + -0.5454545455x + -1.636363636 + x2 = 0 + -1.636363636 Reorder the terms: 1.636363636 + -1.636363636 + -0.5454545455x + x2 = 0 + -1.636363636 Combine like terms: 1.636363636 + -1.636363636 = 0.000000000 0.000000000 + -0.5454545455x + x2 = 0 + -1.636363636 -0.5454545455x + x2 = 0 + -1.636363636 Combine like terms: 0 + -1.636363636 = -1.636363636 -0.5454545455x + x2 = -1.636363636 The x term is -0.5454545455x. Take half its coefficient (-0.2727272728). Square it (0.07438016533) and add it to both sides. Add '0.07438016533' to each side of the equation. -0.5454545455x + 0.07438016533 + x2 = -1.636363636 + 0.07438016533 Reorder the terms: 0.07438016533 + -0.5454545455x + x2 = -1.636363636 + 0.07438016533 Combine like terms: -1.636363636 + 0.07438016533 = -1.56198347067 0.07438016533 + -0.5454545455x + x2 = -1.56198347067 Factor a perfect square on the left side: (x + -0.2727272728)(x + -0.2727272728) = -1.56198347067 Can't calculate square root of the right side. The solution to this equation could not be determined.
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