n^2-2n-n-2-54=0

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Solution for n^2-2n-n-2-54=0 equation:


Simplifying
n2 + -2n + -1n + -2 + -54 = 0

Reorder the terms:
-2 + -54 + -2n + -1n + n2 = 0

Combine like terms: -2 + -54 = -56
-56 + -2n + -1n + n2 = 0

Combine like terms: -2n + -1n = -3n
-56 + -3n + n2 = 0

Solving
-56 + -3n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '56' to each side of the equation.
-56 + -3n + 56 + n2 = 0 + 56

Reorder the terms:
-56 + 56 + -3n + n2 = 0 + 56

Combine like terms: -56 + 56 = 0
0 + -3n + n2 = 0 + 56
-3n + n2 = 0 + 56

Combine like terms: 0 + 56 = 56
-3n + n2 = 56

The n term is -3n.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3n + 2.25 + n2 = 56 + 2.25

Reorder the terms:
2.25 + -3n + n2 = 56 + 2.25

Combine like terms: 56 + 2.25 = 58.25
2.25 + -3n + n2 = 58.25

Factor a perfect square on the left side:
(n + -1.5)(n + -1.5) = 58.25

Calculate the square root of the right side: 7.632168761

Break this problem into two subproblems by setting 
(n + -1.5) equal to 7.632168761 and -7.632168761.

Subproblem 1

n + -1.5 = 7.632168761 Simplifying n + -1.5 = 7.632168761 Reorder the terms: -1.5 + n = 7.632168761 Solving -1.5 + n = 7.632168761 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = 7.632168761 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = 7.632168761 + 1.5 n = 7.632168761 + 1.5 Combine like terms: 7.632168761 + 1.5 = 9.132168761 n = 9.132168761 Simplifying n = 9.132168761

Subproblem 2

n + -1.5 = -7.632168761 Simplifying n + -1.5 = -7.632168761 Reorder the terms: -1.5 + n = -7.632168761 Solving -1.5 + n = -7.632168761 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = -7.632168761 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = -7.632168761 + 1.5 n = -7.632168761 + 1.5 Combine like terms: -7.632168761 + 1.5 = -6.132168761 n = -6.132168761 Simplifying n = -6.132168761

Solution

The solution to the problem is based on the solutions from the subproblems. n = {9.132168761, -6.132168761}

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