n^2-11n+26=0

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Solution for n^2-11n+26=0 equation:


Simplifying
n2 + -11n + 26 = 0

Reorder the terms:
26 + -11n + n2 = 0

Solving
26 + -11n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '-26' to each side of the equation.
26 + -11n + -26 + n2 = 0 + -26

Reorder the terms:
26 + -26 + -11n + n2 = 0 + -26

Combine like terms: 26 + -26 = 0
0 + -11n + n2 = 0 + -26
-11n + n2 = 0 + -26

Combine like terms: 0 + -26 = -26
-11n + n2 = -26

The n term is -11n.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11n + 30.25 + n2 = -26 + 30.25

Reorder the terms:
30.25 + -11n + n2 = -26 + 30.25

Combine like terms: -26 + 30.25 = 4.25
30.25 + -11n + n2 = 4.25

Factor a perfect square on the left side:
(n + -5.5)(n + -5.5) = 4.25

Calculate the square root of the right side: 2.061552813

Break this problem into two subproblems by setting 
(n + -5.5) equal to 2.061552813 and -2.061552813.

Subproblem 1

n + -5.5 = 2.061552813 Simplifying n + -5.5 = 2.061552813 Reorder the terms: -5.5 + n = 2.061552813 Solving -5.5 + n = 2.061552813 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + n = 2.061552813 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + n = 2.061552813 + 5.5 n = 2.061552813 + 5.5 Combine like terms: 2.061552813 + 5.5 = 7.561552813 n = 7.561552813 Simplifying n = 7.561552813

Subproblem 2

n + -5.5 = -2.061552813 Simplifying n + -5.5 = -2.061552813 Reorder the terms: -5.5 + n = -2.061552813 Solving -5.5 + n = -2.061552813 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + n = -2.061552813 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + n = -2.061552813 + 5.5 n = -2.061552813 + 5.5 Combine like terms: -2.061552813 + 5.5 = 3.438447187 n = 3.438447187 Simplifying n = 3.438447187

Solution

The solution to the problem is based on the solutions from the subproblems. n = {7.561552813, 3.438447187}

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