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Simplifying 3n(n + -2) + -2(3 + -1n) = 4(n + -3) Reorder the terms: 3n(-2 + n) + -2(3 + -1n) = 4(n + -3) (-2 * 3n + n * 3n) + -2(3 + -1n) = 4(n + -3) (-6n + 3n2) + -2(3 + -1n) = 4(n + -3) -6n + 3n2 + (3 * -2 + -1n * -2) = 4(n + -3) -6n + 3n2 + (-6 + 2n) = 4(n + -3) Reorder the terms: -6 + -6n + 2n + 3n2 = 4(n + -3) Combine like terms: -6n + 2n = -4n -6 + -4n + 3n2 = 4(n + -3) Reorder the terms: -6 + -4n + 3n2 = 4(-3 + n) -6 + -4n + 3n2 = (-3 * 4 + n * 4) -6 + -4n + 3n2 = (-12 + 4n) Solving -6 + -4n + 3n2 = -12 + 4n Solving for variable 'n'. Reorder the terms: -6 + 12 + -4n + -4n + 3n2 = -12 + 4n + 12 + -4n Combine like terms: -6 + 12 = 6 6 + -4n + -4n + 3n2 = -12 + 4n + 12 + -4n Combine like terms: -4n + -4n = -8n 6 + -8n + 3n2 = -12 + 4n + 12 + -4n Reorder the terms: 6 + -8n + 3n2 = -12 + 12 + 4n + -4n Combine like terms: -12 + 12 = 0 6 + -8n + 3n2 = 0 + 4n + -4n 6 + -8n + 3n2 = 4n + -4n Combine like terms: 4n + -4n = 0 6 + -8n + 3n2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 2 + -2.666666667n + n2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + -2.666666667n + -2 + n2 = 0 + -2 Reorder the terms: 2 + -2 + -2.666666667n + n2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -2.666666667n + n2 = 0 + -2 -2.666666667n + n2 = 0 + -2 Combine like terms: 0 + -2 = -2 -2.666666667n + n2 = -2 The n term is -2.666666667n. Take half its coefficient (-1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. -2.666666667n + 1.777777780 + n2 = -2 + 1.777777780 Reorder the terms: 1.777777780 + -2.666666667n + n2 = -2 + 1.777777780 Combine like terms: -2 + 1.777777780 = -0.22222222 1.777777780 + -2.666666667n + n2 = -0.22222222 Factor a perfect square on the left side: (n + -1.333333334)(n + -1.333333334) = -0.22222222 Can't calculate square root of the right side. The solution to this equation could not be determined.
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