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Simplifying (2n + 1)(n + -2) + -1(n + 4)(n + -3) = 0 Reorder the terms: (1 + 2n)(n + -2) + -1(n + 4)(n + -3) = 0 Reorder the terms: (1 + 2n)(-2 + n) + -1(n + 4)(n + -3) = 0 Multiply (1 + 2n) * (-2 + n) (1(-2 + n) + 2n * (-2 + n)) + -1(n + 4)(n + -3) = 0 ((-2 * 1 + n * 1) + 2n * (-2 + n)) + -1(n + 4)(n + -3) = 0 ((-2 + 1n) + 2n * (-2 + n)) + -1(n + 4)(n + -3) = 0 (-2 + 1n + (-2 * 2n + n * 2n)) + -1(n + 4)(n + -3) = 0 (-2 + 1n + (-4n + 2n2)) + -1(n + 4)(n + -3) = 0 Combine like terms: 1n + -4n = -3n (-2 + -3n + 2n2) + -1(n + 4)(n + -3) = 0 Reorder the terms: -2 + -3n + 2n2 + -1(4 + n)(n + -3) = 0 Reorder the terms: -2 + -3n + 2n2 + -1(4 + n)(-3 + n) = 0 Multiply (4 + n) * (-3 + n) -2 + -3n + 2n2 + -1(4(-3 + n) + n(-3 + n)) = 0 -2 + -3n + 2n2 + -1((-3 * 4 + n * 4) + n(-3 + n)) = 0 -2 + -3n + 2n2 + -1((-12 + 4n) + n(-3 + n)) = 0 -2 + -3n + 2n2 + -1(-12 + 4n + (-3 * n + n * n)) = 0 -2 + -3n + 2n2 + -1(-12 + 4n + (-3n + n2)) = 0 Combine like terms: 4n + -3n = 1n -2 + -3n + 2n2 + -1(-12 + 1n + n2) = 0 -2 + -3n + 2n2 + (-12 * -1 + 1n * -1 + n2 * -1) = 0 -2 + -3n + 2n2 + (12 + -1n + -1n2) = 0 Reorder the terms: -2 + 12 + -3n + -1n + 2n2 + -1n2 = 0 Combine like terms: -2 + 12 = 10 10 + -3n + -1n + 2n2 + -1n2 = 0 Combine like terms: -3n + -1n = -4n 10 + -4n + 2n2 + -1n2 = 0 Combine like terms: 2n2 + -1n2 = 1n2 10 + -4n + 1n2 = 0 Solving 10 + -4n + 1n2 = 0 Solving for variable 'n'. Begin completing the square. Move the constant term to the right: Add '-10' to each side of the equation. 10 + -4n + -10 + n2 = 0 + -10 Reorder the terms: 10 + -10 + -4n + n2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -4n + n2 = 0 + -10 -4n + n2 = 0 + -10 Combine like terms: 0 + -10 = -10 -4n + n2 = -10 The n term is -4n. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4n + 4 + n2 = -10 + 4 Reorder the terms: 4 + -4n + n2 = -10 + 4 Combine like terms: -10 + 4 = -6 4 + -4n + n2 = -6 Factor a perfect square on the left side: (n + -2)(n + -2) = -6 Can't calculate square root of the right side. The solution to this equation could not be determined.
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