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Simplifying (8 + -2n + -1n2) + (-3 + -1n + 4n2) = 0 Remove parenthesis around (8 + -2n + -1n2) 8 + -2n + -1n2 + (-3 + -1n + 4n2) = 0 Remove parenthesis around (-3 + -1n + 4n2) 8 + -2n + -1n2 + -3 + -1n + 4n2 = 0 Reorder the terms: 8 + -3 + -2n + -1n + -1n2 + 4n2 = 0 Combine like terms: 8 + -3 = 5 5 + -2n + -1n + -1n2 + 4n2 = 0 Combine like terms: -2n + -1n = -3n 5 + -3n + -1n2 + 4n2 = 0 Combine like terms: -1n2 + 4n2 = 3n2 5 + -3n + 3n2 = 0 Solving 5 + -3n + 3n2 = 0 Solving for variable 'n'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1.666666667 + -1n + n2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + -1n + -1.666666667 + n2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + -1n + n2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + -1n + n2 = 0 + -1.666666667 -1n + n2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 -1n + n2 = -1.666666667 The n term is -1n. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1n + 0.25 + n2 = -1.666666667 + 0.25 Reorder the terms: 0.25 + -1n + n2 = -1.666666667 + 0.25 Combine like terms: -1.666666667 + 0.25 = -1.416666667 0.25 + -1n + n2 = -1.416666667 Factor a perfect square on the left side: (n + -0.5)(n + -0.5) = -1.416666667 Can't calculate square root of the right side. The solution to this equation could not be determined.
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