x^2+x=4.39

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Solution for x^2+x=4.39 equation: 


Simplifying
x2 + x = 4.39

Reorder the terms:
x + x2 = 4.39

Solving
x + x2 = 4.39

Solving for variable 'x'.

Reorder the terms:
-4.39 + x + x2 = 4.39 + -4.39

Combine like terms: 4.39 + -4.39 = 0.00
-4.39 + x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '4.39' to each side of the equation.
-4.39 + x + 4.39 + x2 = 0.00 + 4.39

Reorder the terms:
-4.39 + 4.39 + x + x2 = 0.00 + 4.39

Combine like terms: -4.39 + 4.39 = 0.00
0.00 + x + x2 = 0.00 + 4.39
x + x2 = 0.00 + 4.39

Combine like terms: 0.00 + 4.39 = 4.39
x + x2 = 4.39

The x term is x.  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.
x + 0.25 + x2 = 4.39 + 0.25

Reorder the terms:
0.25 + x + x2 = 4.39 + 0.25

Combine like terms: 4.39 + 0.25 = 4.64
0.25 + x + x2 = 4.64

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 4.64

Calculate the square root of the right side: 2.154065923

Break this problem into two subproblems by setting 
(x + 0.5) equal to 2.154065923 and -2.154065923.


Subproblem 1
x + 0.5 = 2.154065923

Simplifying
x + 0.5 = 2.154065923

Reorder the terms:
0.5 + x = 2.154065923

Solving
0.5 + x = 2.154065923

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.5' to each side of the equation.
0.5 + -0.5 + x = 2.154065923 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + x = 2.154065923 + -0.5
x = 2.154065923 + -0.5

Combine like terms: 2.154065923 + -0.5 = 1.654065923
x = 1.654065923

Simplifying
x = 1.654065923


Subproblem 2
x + 0.5 = -2.154065923

Simplifying
x + 0.5 = -2.154065923

Reorder the terms:
0.5 + x = -2.154065923

Solving
0.5 + x = -2.154065923

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.5' to each side of the equation.
0.5 + -0.5 + x = -2.154065923 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + x = -2.154065923 + -0.5
x = -2.154065923 + -0.5

Combine like terms: -2.154065923 + -0.5 = -2.654065923
x = -2.654065923

Simplifying
x = -2.654065923


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {1.654065923, -2.654065923}

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