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Simplifying n2 + -2n + 19 = 0 Reorder the terms: 19 + -2n + n2 = 0 Solving 19 + -2n + n2 = 0 Solving for variable 'n'. Begin completing the square. Move the constant term to the right: Add '-19' to each side of the equation. 19 + -2n + -19 + n2 = 0 + -19 Reorder the terms: 19 + -19 + -2n + n2 = 0 + -19 Combine like terms: 19 + -19 = 0 0 + -2n + n2 = 0 + -19 -2n + n2 = 0 + -19 Combine like terms: 0 + -19 = -19 -2n + n2 = -19 The n term is -2n. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2n + 1 + n2 = -19 + 1 Reorder the terms: 1 + -2n + n2 = -19 + 1 Combine like terms: -19 + 1 = -18 1 + -2n + n2 = -18 Factor a perfect square on the left side: (n + -1)(n + -1) = -18 Can't calculate square root of the right side. The solution to this equation could not be determined.
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