(N)+(n+1)*(n+2)=-84

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Solution for (N)+(n+1)*(n+2)=-84 equation:


Simplifying
(N) + (n + 1)(n + 2) = -84
N + (n + 1)(n + 2) = -84

Reorder the terms:
N + (1 + n)(n + 2) = -84

Reorder the terms:
N + (1 + n)(2 + n) = -84

Multiply (1 + n) * (2 + n)
N + (1(2 + n) + n(2 + n)) = -84
N + ((2 * 1 + n * 1) + n(2 + n)) = -84
N + ((2 + 1n) + n(2 + n)) = -84
N + (2 + 1n + (2 * n + n * n)) = -84
N + (2 + 1n + (2n + n2)) = -84

Combine like terms: 1n + 2n = 3n
N + (2 + 3n + n2) = -84

Reorder the terms:
2 + N + 3n + n2 = -84

Solving
2 + N + 3n + n2 = -84

Solving for variable 'N'.

Move all terms containing N to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + N + 3n + -2 + n2 = -84 + -2

Reorder the terms:
2 + -2 + N + 3n + n2 = -84 + -2

Combine like terms: 2 + -2 = 0
0 + N + 3n + n2 = -84 + -2
N + 3n + n2 = -84 + -2

Combine like terms: -84 + -2 = -86
N + 3n + n2 = -86

Add '-3n' to each side of the equation.
N + 3n + -3n + n2 = -86 + -3n

Combine like terms: 3n + -3n = 0
N + 0 + n2 = -86 + -3n
N + n2 = -86 + -3n

Add '-1n2' to each side of the equation.
N + n2 + -1n2 = -86 + -3n + -1n2

Combine like terms: n2 + -1n2 = 0
N + 0 = -86 + -3n + -1n2
N = -86 + -3n + -1n2

Simplifying
N = -86 + -3n + -1n2

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