5=n^2-n

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Solution for 5=n^2-n equation:


Simplifying
5 = n2 + -1n

Reorder the terms:
5 = -1n + n2

Solving
5 = -1n + n2

Solving for variable 'n'.

Reorder the terms:
5 + n + -1n2 = -1n + n + n2 + -1n2

Combine like terms: -1n + n = 0
5 + n + -1n2 = 0 + n2 + -1n2
5 + n + -1n2 = n2 + -1n2

Combine like terms: n2 + -1n2 = 0
5 + n + -1n2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-5 + -1n + n2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -1n + 5 + n2 = 0 + 5

Reorder the terms:
-5 + 5 + -1n + n2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1n + n2 = 0 + 5
-1n + n2 = 0 + 5

Combine like terms: 0 + 5 = 5
-1n + n2 = 5

The n term is n.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1n + 0.25 + n2 = 5 + 0.25

Reorder the terms:
0.25 + -1n + n2 = 5 + 0.25

Combine like terms: 5 + 0.25 = 5.25
0.25 + -1n + n2 = 5.25

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 5.25

Calculate the square root of the right side: 2.291287847

Break this problem into two subproblems by setting 
(n + 0.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

n + 0.5 = 2.291287847 Simplifying n + 0.5 = 2.291287847 Reorder the terms: 0.5 + n = 2.291287847 Solving 0.5 + n = 2.291287847 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = 2.291287847 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 2.291287847 + -0.5 n = 2.291287847 + -0.5 Combine like terms: 2.291287847 + -0.5 = 1.791287847 n = 1.791287847 Simplifying n = 1.791287847

Subproblem 2

n + 0.5 = -2.291287847 Simplifying n + 0.5 = -2.291287847 Reorder the terms: 0.5 + n = -2.291287847 Solving 0.5 + n = -2.291287847 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = -2.291287847 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -2.291287847 + -0.5 n = -2.291287847 + -0.5 Combine like terms: -2.291287847 + -0.5 = -2.791287847 n = -2.791287847 Simplifying n = -2.791287847

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.791287847, -2.791287847}

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