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Simplifying 1 + -0.75x + 0.5625x2 = 0 Solving 1 + -0.75x + 0.5625x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.5625 the coefficient of the squared term: Divide each side by '0.5625'. 1.777777778 + -1.333333333x + x2 = 0 Move the constant term to the right: Add '-1.777777778' to each side of the equation. 1.777777778 + -1.333333333x + -1.777777778 + x2 = 0 + -1.777777778 Reorder the terms: 1.777777778 + -1.777777778 + -1.333333333x + x2 = 0 + -1.777777778 Combine like terms: 1.777777778 + -1.777777778 = 0.000000000 0.000000000 + -1.333333333x + x2 = 0 + -1.777777778 -1.333333333x + x2 = 0 + -1.777777778 Combine like terms: 0 + -1.777777778 = -1.777777778 -1.333333333x + x2 = -1.777777778 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 = -1.777777778 + 0.4444444442 Reorder the terms: 0.4444444442 + -1.333333333x + x2 = -1.777777778 + 0.4444444442 Combine like terms: -1.777777778 + 0.4444444442 = -1.3333333338 0.4444444442 + -1.333333333x + x2 = -1.3333333338 Factor a perfect square on the left side: (x + -0.6666666665)(x + -0.6666666665) = -1.3333333338 Can't calculate square root of the right side. The solution to this equation could not be determined.
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