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Simplifying k2 + -2k + 10 = 0 Reorder the terms: 10 + -2k + k2 = 0 Solving 10 + -2k + k2 = 0 Solving for variable 'k'. Begin completing the square. Move the constant term to the right: Add '-10' to each side of the equation. 10 + -2k + -10 + k2 = 0 + -10 Reorder the terms: 10 + -10 + -2k + k2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -2k + k2 = 0 + -10 -2k + k2 = 0 + -10 Combine like terms: 0 + -10 = -10 -2k + k2 = -10 The k term is -2k. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2k + 1 + k2 = -10 + 1 Reorder the terms: 1 + -2k + k2 = -10 + 1 Combine like terms: -10 + 1 = -9 1 + -2k + k2 = -9 Factor a perfect square on the left side: (k + -1)(k + -1) = -9 Can't calculate square root of the right side. The solution to this equation could not be determined.
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