-.22x^2+23x-251=0

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Solution for -.22x^2+23x-251=0 equation:


Simplifying
-0.22x2 + 23x + -251 = 0

Reorder the terms:
-251 + 23x + -0.22x2 = 0

Solving
-251 + 23x + -0.22x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.22 the coefficient of the squared term: 

Divide each side by '-0.22'.
1140.909091 + -104.5454545x + x2 = 0

Move the constant term to the right:

Add '-1140.909091' to each side of the equation.
1140.909091 + -104.5454545x + -1140.909091 + x2 = 0 + -1140.909091

Reorder the terms:
1140.909091 + -1140.909091 + -104.5454545x + x2 = 0 + -1140.909091

Combine like terms: 1140.909091 + -1140.909091 = 0.000000
0.000000 + -104.5454545x + x2 = 0 + -1140.909091
-104.5454545x + x2 = 0 + -1140.909091

Combine like terms: 0 + -1140.909091 = -1140.909091
-104.5454545x + x2 = -1140.909091

The x term is -104.5454545x.  Take half its coefficient (-52.27272725).
Square it (2732.438014) and add it to both sides.

Add '2732.438014' to each side of the equation.
-104.5454545x + 2732.438014 + x2 = -1140.909091 + 2732.438014

Reorder the terms:
2732.438014 + -104.5454545x + x2 = -1140.909091 + 2732.438014

Combine like terms: -1140.909091 + 2732.438014 = 1591.528923
2732.438014 + -104.5454545x + x2 = 1591.528923

Factor a perfect square on the left side:
(x + -52.27272725)(x + -52.27272725) = 1591.528923

Calculate the square root of the right side: 39.893971011

Break this problem into two subproblems by setting 
(x + -52.27272725) equal to 39.893971011 and -39.893971011.

Subproblem 1

x + -52.27272725 = 39.893971011 Simplifying x + -52.27272725 = 39.893971011 Reorder the terms: -52.27272725 + x = 39.893971011 Solving -52.27272725 + x = 39.893971011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '52.27272725' to each side of the equation. -52.27272725 + 52.27272725 + x = 39.893971011 + 52.27272725 Combine like terms: -52.27272725 + 52.27272725 = 0.00000000 0.00000000 + x = 39.893971011 + 52.27272725 x = 39.893971011 + 52.27272725 Combine like terms: 39.893971011 + 52.27272725 = 92.166698261 x = 92.166698261 Simplifying x = 92.166698261

Subproblem 2

x + -52.27272725 = -39.893971011 Simplifying x + -52.27272725 = -39.893971011 Reorder the terms: -52.27272725 + x = -39.893971011 Solving -52.27272725 + x = -39.893971011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '52.27272725' to each side of the equation. -52.27272725 + 52.27272725 + x = -39.893971011 + 52.27272725 Combine like terms: -52.27272725 + 52.27272725 = 0.00000000 0.00000000 + x = -39.893971011 + 52.27272725 x = -39.893971011 + 52.27272725 Combine like terms: -39.893971011 + 52.27272725 = 12.378756239 x = 12.378756239 Simplifying x = 12.378756239

Solution

The solution to the problem is based on the solutions from the subproblems. x = {92.166698261, 12.378756239}

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