n^2+n=739

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Solution for n^2+n=739 equation:


Simplifying
n2 + n = 739

Reorder the terms:
n + n2 = 739

Solving
n + n2 = 739

Solving for variable 'n'.

Reorder the terms:
-739 + n + n2 = 739 + -739

Combine like terms: 739 + -739 = 0
-739 + n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '739' to each side of the equation.
-739 + n + 739 + n2 = 0 + 739

Reorder the terms:
-739 + 739 + n + n2 = 0 + 739

Combine like terms: -739 + 739 = 0
0 + n + n2 = 0 + 739
n + n2 = 0 + 739

Combine like terms: 0 + 739 = 739
n + n2 = 739

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.
n + 0.25 + n2 = 739 + 0.25

Reorder the terms:
0.25 + n + n2 = 739 + 0.25

Combine like terms: 739 + 0.25 = 739.25
0.25 + n + n2 = 739.25

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 739.25

Calculate the square root of the right side: 27.189152249

Break this problem into two subproblems by setting 
(n + 0.5) equal to 27.189152249 and -27.189152249.

Subproblem 1

n + 0.5 = 27.189152249 Simplifying n + 0.5 = 27.189152249 Reorder the terms: 0.5 + n = 27.189152249 Solving 0.5 + n = 27.189152249 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 = 27.189152249 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 27.189152249 + -0.5 n = 27.189152249 + -0.5 Combine like terms: 27.189152249 + -0.5 = 26.689152249 n = 26.689152249 Simplifying n = 26.689152249

Subproblem 2

n + 0.5 = -27.189152249 Simplifying n + 0.5 = -27.189152249 Reorder the terms: 0.5 + n = -27.189152249 Solving 0.5 + n = -27.189152249 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 = -27.189152249 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -27.189152249 + -0.5 n = -27.189152249 + -0.5 Combine like terms: -27.189152249 + -0.5 = -27.689152249 n = -27.689152249 Simplifying n = -27.689152249

Solution

The solution to the problem is based on the solutions from the subproblems. n = {26.689152249, -27.689152249}

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