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Simplifying x2 + -1x + 156 = 0 Reorder the terms: 156 + -1x + x2 = 0 Solving 156 + -1x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-156' to each side of the equation. 156 + -1x + -156 + x2 = 0 + -156 Reorder the terms: 156 + -156 + -1x + x2 = 0 + -156 Combine like terms: 156 + -156 = 0 0 + -1x + x2 = 0 + -156 -1x + x2 = 0 + -156 Combine like terms: 0 + -156 = -156 -1x + x2 = -156 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = -156 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -156 + 0.25 Combine like terms: -156 + 0.25 = -155.75 0.25 + -1x + x2 = -155.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -155.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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