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Simplifying x2 + 2x + n = 0 Reorder the terms: n + 2x + x2 = 0 Solving n + 2x + x2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2x' to each side of the equation. n + 2x + -2x + x2 = 0 + -2x Combine like terms: 2x + -2x = 0 n + 0 + x2 = 0 + -2x n + x2 = 0 + -2x Remove the zero: n + x2 = -2x Add '-1x2' to each side of the equation. n + x2 + -1x2 = -2x + -1x2 Combine like terms: x2 + -1x2 = 0 n + 0 = -2x + -1x2 n = -2x + -1x2 Simplifying n = -2x + -1x2
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