11n^2-n-56=

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Solution for 11n^2-n-56= equation:


Simplifying
11n2 + -1n + -56 = 0

Reorder the terms:
-56 + -1n + 11n2 = 0

Solving
-56 + -1n + 11n2 = 0

Solving for variable 'n'.

Begin completing the square.  Divide all terms by
11 the coefficient of the squared term: 

Divide each side by '11'.
-5.090909091 + -0.09090909091n + n2 = 0

Move the constant term to the right:

Add '5.090909091' to each side of the equation.
-5.090909091 + -0.09090909091n + 5.090909091 + n2 = 0 + 5.090909091

Reorder the terms:
-5.090909091 + 5.090909091 + -0.09090909091n + n2 = 0 + 5.090909091

Combine like terms: -5.090909091 + 5.090909091 = 0.000000000
0.000000000 + -0.09090909091n + n2 = 0 + 5.090909091
-0.09090909091n + n2 = 0 + 5.090909091

Combine like terms: 0 + 5.090909091 = 5.090909091
-0.09090909091n + n2 = 5.090909091

The n term is -0.09090909091n.  Take half its coefficient (-0.04545454546).
Square it (0.002066115703) and add it to both sides.

Add '0.002066115703' to each side of the equation.
-0.09090909091n + 0.002066115703 + n2 = 5.090909091 + 0.002066115703

Reorder the terms:
0.002066115703 + -0.09090909091n + n2 = 5.090909091 + 0.002066115703

Combine like terms: 5.090909091 + 0.002066115703 = 5.092975206703
0.002066115703 + -0.09090909091n + n2 = 5.092975206703

Factor a perfect square on the left side:
(n + -0.04545454546)(n + -0.04545454546) = 5.092975206703

Calculate the square root of the right side: 2.256762107

Break this problem into two subproblems by setting 
(n + -0.04545454546) equal to 2.256762107 and -2.256762107.

Subproblem 1

n + -0.04545454546 = 2.256762107 Simplifying n + -0.04545454546 = 2.256762107 Reorder the terms: -0.04545454546 + n = 2.256762107 Solving -0.04545454546 + n = 2.256762107 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.04545454546' to each side of the equation. -0.04545454546 + 0.04545454546 + n = 2.256762107 + 0.04545454546 Combine like terms: -0.04545454546 + 0.04545454546 = 0.00000000000 0.00000000000 + n = 2.256762107 + 0.04545454546 n = 2.256762107 + 0.04545454546 Combine like terms: 2.256762107 + 0.04545454546 = 2.30221665246 n = 2.30221665246 Simplifying n = 2.30221665246

Subproblem 2

n + -0.04545454546 = -2.256762107 Simplifying n + -0.04545454546 = -2.256762107 Reorder the terms: -0.04545454546 + n = -2.256762107 Solving -0.04545454546 + n = -2.256762107 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.04545454546' to each side of the equation. -0.04545454546 + 0.04545454546 + n = -2.256762107 + 0.04545454546 Combine like terms: -0.04545454546 + 0.04545454546 = 0.00000000000 0.00000000000 + n = -2.256762107 + 0.04545454546 n = -2.256762107 + 0.04545454546 Combine like terms: -2.256762107 + 0.04545454546 = -2.21130756154 n = -2.21130756154 Simplifying n = -2.21130756154

Solution

The solution to the problem is based on the solutions from the subproblems. n = {2.30221665246, -2.21130756154}

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