x^2-23x-6=0

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Solution for x^2-23x-6=0 equation:


Simplifying
x2 + -23x + -6 = 0

Reorder the terms:
-6 + -23x + x2 = 0

Solving
-6 + -23x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -23x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -23x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -23x + x2 = 0 + 6
-23x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-23x + x2 = 6

The x term is -23x.  Take half its coefficient (-11.5).
Square it (132.25) and add it to both sides.

Add '132.25' to each side of the equation.
-23x + 132.25 + x2 = 6 + 132.25

Reorder the terms:
132.25 + -23x + x2 = 6 + 132.25

Combine like terms: 6 + 132.25 = 138.25
132.25 + -23x + x2 = 138.25

Factor a perfect square on the left side:
(x + -11.5)(x + -11.5) = 138.25

Calculate the square root of the right side: 11.757976016

Break this problem into two subproblems by setting 
(x + -11.5) equal to 11.757976016 and -11.757976016.

Subproblem 1

x + -11.5 = 11.757976016 Simplifying x + -11.5 = 11.757976016 Reorder the terms: -11.5 + x = 11.757976016 Solving -11.5 + x = 11.757976016 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + x = 11.757976016 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = 11.757976016 + 11.5 x = 11.757976016 + 11.5 Combine like terms: 11.757976016 + 11.5 = 23.257976016 x = 23.257976016 Simplifying x = 23.257976016

Subproblem 2

x + -11.5 = -11.757976016 Simplifying x + -11.5 = -11.757976016 Reorder the terms: -11.5 + x = -11.757976016 Solving -11.5 + x = -11.757976016 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + x = -11.757976016 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + x = -11.757976016 + 11.5 x = -11.757976016 + 11.5 Combine like terms: -11.757976016 + 11.5 = -0.257976016 x = -0.257976016 Simplifying x = -0.257976016

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.257976016, -0.257976016}

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