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Simplifying 3x2 + -4x + 57 = 0 Reorder the terms: 57 + -4x + 3x2 = 0 Solving 57 + -4x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 19 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '-19' to each side of the equation. 19 + -1.333333333x + -19 + x2 = 0 + -19 Reorder the terms: 19 + -19 + -1.333333333x + x2 = 0 + -19 Combine like terms: 19 + -19 = 0 0 + -1.333333333x + x2 = 0 + -19 -1.333333333x + x2 = 0 + -19 Combine like terms: 0 + -19 = -19 -1.333333333x + x2 = -19 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 = -19 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = -19 + 0.4444444442 Combine like terms: -19 + 0.4444444442 = -18.5555555558 0.4444444442 + -1.333333333x + x2 = -18.5555555558 Factor a perfect square on the left side: (x + -0.6666666665)(x + -0.6666666665) = -18.5555555558 Can't calculate square root of the right side. The solution to this equation could not be determined.
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