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Simplifying x2 + -10x + 25 = -1 Reorder the terms: 25 + -10x + x2 = -1 Solving 25 + -10x + x2 = -1 Solving for variable 'x'. Reorder the terms: 25 + 1 + -10x + x2 = -1 + 1 Combine like terms: 25 + 1 = 26 26 + -10x + x2 = -1 + 1 Combine like terms: -1 + 1 = 0 26 + -10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-26' to each side of the equation. 26 + -10x + -26 + x2 = 0 + -26 Reorder the terms: 26 + -26 + -10x + x2 = 0 + -26 Combine like terms: 26 + -26 = 0 0 + -10x + x2 = 0 + -26 -10x + x2 = 0 + -26 Combine like terms: 0 + -26 = -26 -10x + x2 = -26 The x term is -10x. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10x + 25 + x2 = -26 + 25 Reorder the terms: 25 + -10x + x2 = -26 + 25 Combine like terms: -26 + 25 = -1 25 + -10x + x2 = -1 Factor a perfect square on the left side: (x + -5)(x + -5) = -1 Can't calculate square root of the right side. The solution to this equation could not be determined.
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