x^2-22x+121=131

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Solution for x^2-22x+121=131 equation:


Simplifying
x2 + -22x + 121 = 131

Reorder the terms:
121 + -22x + x2 = 131

Solving
121 + -22x + x2 = 131

Solving for variable 'x'.

Reorder the terms:
121 + -131 + -22x + x2 = 131 + -131

Combine like terms: 121 + -131 = -10
-10 + -22x + x2 = 131 + -131

Combine like terms: 131 + -131 = 0
-10 + -22x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -22x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + -22x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -22x + x2 = 0 + 10
-22x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
-22x + x2 = 10

The x term is -22x.  Take half its coefficient (-11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
-22x + 121 + x2 = 10 + 121

Reorder the terms:
121 + -22x + x2 = 10 + 121

Combine like terms: 10 + 121 = 131
121 + -22x + x2 = 131

Factor a perfect square on the left side:
(x + -11)(x + -11) = 131

Calculate the square root of the right side: 11.445523142

Break this problem into two subproblems by setting 
(x + -11) equal to 11.445523142 and -11.445523142.

Subproblem 1

x + -11 = 11.445523142 Simplifying x + -11 = 11.445523142 Reorder the terms: -11 + x = 11.445523142 Solving -11 + x = 11.445523142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = 11.445523142 + 11 Combine like terms: -11 + 11 = 0 0 + x = 11.445523142 + 11 x = 11.445523142 + 11 Combine like terms: 11.445523142 + 11 = 22.445523142 x = 22.445523142 Simplifying x = 22.445523142

Subproblem 2

x + -11 = -11.445523142 Simplifying x + -11 = -11.445523142 Reorder the terms: -11 + x = -11.445523142 Solving -11 + x = -11.445523142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = -11.445523142 + 11 Combine like terms: -11 + 11 = 0 0 + x = -11.445523142 + 11 x = -11.445523142 + 11 Combine like terms: -11.445523142 + 11 = -0.445523142 x = -0.445523142 Simplifying x = -0.445523142

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.445523142, -0.445523142}

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