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Simplifying x2 + -2x + 82 = 0 Reorder the terms: 82 + -2x + x2 = 0 Solving 82 + -2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-82' to each side of the equation. 82 + -2x + -82 + x2 = 0 + -82 Reorder the terms: 82 + -82 + -2x + x2 = 0 + -82 Combine like terms: 82 + -82 = 0 0 + -2x + x2 = 0 + -82 -2x + x2 = 0 + -82 Combine like terms: 0 + -82 = -82 -2x + x2 = -82 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = -82 + 1 Reorder the terms: 1 + -2x + x2 = -82 + 1 Combine like terms: -82 + 1 = -81 1 + -2x + x2 = -81 Factor a perfect square on the left side: (x + -1)(x + -1) = -81 Can't calculate square root of the right side. The solution to this equation could not be determined.
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