2x^2-23x-333=0

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Solution for 2x^2-23x-333=0 equation:


Simplifying
2x2 + -23x + -333 = 0

Reorder the terms:
-333 + -23x + 2x2 = 0

Solving
-333 + -23x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-166.5 + -11.5x + x2 = 0

Move the constant term to the right:

Add '166.5' to each side of the equation.
-166.5 + -11.5x + 166.5 + x2 = 0 + 166.5

Reorder the terms:
-166.5 + 166.5 + -11.5x + x2 = 0 + 166.5

Combine like terms: -166.5 + 166.5 = 0.0
0.0 + -11.5x + x2 = 0 + 166.5
-11.5x + x2 = 0 + 166.5

Combine like terms: 0 + 166.5 = 166.5
-11.5x + x2 = 166.5

The x term is -11.5x.  Take half its coefficient (-5.75).
Square it (33.0625) and add it to both sides.

Add '33.0625' to each side of the equation.
-11.5x + 33.0625 + x2 = 166.5 + 33.0625

Reorder the terms:
33.0625 + -11.5x + x2 = 166.5 + 33.0625

Combine like terms: 166.5 + 33.0625 = 199.5625
33.0625 + -11.5x + x2 = 199.5625

Factor a perfect square on the left side:
(x + -5.75)(x + -5.75) = 199.5625

Calculate the square root of the right side: 14.126659195

Break this problem into two subproblems by setting 
(x + -5.75) equal to 14.126659195 and -14.126659195.

Subproblem 1

x + -5.75 = 14.126659195 Simplifying x + -5.75 = 14.126659195 Reorder the terms: -5.75 + x = 14.126659195 Solving -5.75 + x = 14.126659195 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = 14.126659195 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = 14.126659195 + 5.75 x = 14.126659195 + 5.75 Combine like terms: 14.126659195 + 5.75 = 19.876659195 x = 19.876659195 Simplifying x = 19.876659195

Subproblem 2

x + -5.75 = -14.126659195 Simplifying x + -5.75 = -14.126659195 Reorder the terms: -5.75 + x = -14.126659195 Solving -5.75 + x = -14.126659195 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = -14.126659195 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = -14.126659195 + 5.75 x = -14.126659195 + 5.75 Combine like terms: -14.126659195 + 5.75 = -8.376659195 x = -8.376659195 Simplifying x = -8.376659195

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.876659195, -8.376659195}

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