x^2+x+3=117

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Solution for x^2+x+3=117 equation:


Simplifying
x2 + x + 3 = 117

Reorder the terms:
3 + x + x2 = 117

Solving
3 + x + x2 = 117

Solving for variable 'x'.

Reorder the terms:
3 + -117 + x + x2 = 117 + -117

Combine like terms: 3 + -117 = -114
-114 + x + x2 = 117 + -117

Combine like terms: 117 + -117 = 0
-114 + x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '114' to each side of the equation.
-114 + x + 114 + x2 = 0 + 114

Reorder the terms:
-114 + 114 + x + x2 = 0 + 114

Combine like terms: -114 + 114 = 0
0 + x + x2 = 0 + 114
x + x2 = 0 + 114

Combine like terms: 0 + 114 = 114
x + x2 = 114

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 = 114 + 0.25

Reorder the terms:
0.25 + x + x2 = 114 + 0.25

Combine like terms: 114 + 0.25 = 114.25
0.25 + x + x2 = 114.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 114.25

Calculate the square root of the right side: 10.688779163

Break this problem into two subproblems by setting 
(x + 0.5) equal to 10.688779163 and -10.688779163.

Subproblem 1

x + 0.5 = 10.688779163 Simplifying x + 0.5 = 10.688779163 Reorder the terms: 0.5 + x = 10.688779163 Solving 0.5 + x = 10.688779163 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 = 10.688779163 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 10.688779163 + -0.5 x = 10.688779163 + -0.5 Combine like terms: 10.688779163 + -0.5 = 10.188779163 x = 10.188779163 Simplifying x = 10.188779163

Subproblem 2

x + 0.5 = -10.688779163 Simplifying x + 0.5 = -10.688779163 Reorder the terms: 0.5 + x = -10.688779163 Solving 0.5 + x = -10.688779163 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 = -10.688779163 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -10.688779163 + -0.5 x = -10.688779163 + -0.5 Combine like terms: -10.688779163 + -0.5 = -11.188779163 x = -11.188779163 Simplifying x = -11.188779163

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.188779163, -11.188779163}

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