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Simplifying x2 + -2x + 240 = 0 Reorder the terms: 240 + -2x + x2 = 0 Solving 240 + -2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-240' to each side of the equation. 240 + -2x + -240 + x2 = 0 + -240 Reorder the terms: 240 + -240 + -2x + x2 = 0 + -240 Combine like terms: 240 + -240 = 0 0 + -2x + x2 = 0 + -240 -2x + x2 = 0 + -240 Combine like terms: 0 + -240 = -240 -2x + x2 = -240 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 = -240 + 1 Reorder the terms: 1 + -2x + x2 = -240 + 1 Combine like terms: -240 + 1 = -239 1 + -2x + x2 = -239 Factor a perfect square on the left side: (x + -1)(x + -1) = -239 Can't calculate square root of the right side. The solution to this equation could not be determined.
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