x^2-x-114=0

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Solution for x^2-x-114=0 equation:


Simplifying
x2 + -1x + -114 = 0

Reorder the terms:
-114 + -1x + x2 = 0

Solving
-114 + -1x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '114' to each side of the equation.
-114 + -1x + 114 + x2 = 0 + 114

Reorder the terms:
-114 + 114 + -1x + x2 = 0 + 114

Combine like terms: -114 + 114 = 0
0 + -1x + x2 = 0 + 114
-1x + x2 = 0 + 114

Combine like terms: 0 + 114 = 114
-1x + x2 = 114

The x term is -1x.  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.
-1x + 0.25 + x2 = 114 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 114 + 0.25

Combine like terms: 114 + 0.25 = 114.25
0.25 + -1x + 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 = 11.188779163 x = 11.188779163 Simplifying x = 11.188779163

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 = -10.188779163 x = -10.188779163 Simplifying x = -10.188779163

Solution

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

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