11x^2-22x+1=0

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Solution for 11x^2-22x+1=0 equation:


Simplifying
11x2 + -22x + 1 = 0

Reorder the terms:
1 + -22x + 11x2 = 0

Solving
1 + -22x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
0.09090909091 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.09090909091' to each side of the equation.
0.09090909091 + -2x + -0.09090909091 + x2 = 0 + -0.09090909091

Reorder the terms:
0.09090909091 + -0.09090909091 + -2x + x2 = 0 + -0.09090909091

Combine like terms: 0.09090909091 + -0.09090909091 = 0.00000000000
0.00000000000 + -2x + x2 = 0 + -0.09090909091
-2x + x2 = 0 + -0.09090909091

Combine like terms: 0 + -0.09090909091 = -0.09090909091
-2x + x2 = -0.09090909091

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.09090909091 + 1

Reorder the terms:
1 + -2x + x2 = -0.09090909091 + 1

Combine like terms: -0.09090909091 + 1 = 0.90909090909
1 + -2x + x2 = 0.90909090909

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.90909090909

Calculate the square root of the right side: 0.953462589

Break this problem into two subproblems by setting 
(x + -1) equal to 0.953462589 and -0.953462589.

Subproblem 1

x + -1 = 0.953462589 Simplifying x + -1 = 0.953462589 Reorder the terms: -1 + x = 0.953462589 Solving -1 + x = 0.953462589 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.953462589 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.953462589 + 1 x = 0.953462589 + 1 Combine like terms: 0.953462589 + 1 = 1.953462589 x = 1.953462589 Simplifying x = 1.953462589

Subproblem 2

x + -1 = -0.953462589 Simplifying x + -1 = -0.953462589 Reorder the terms: -1 + x = -0.953462589 Solving -1 + x = -0.953462589 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.953462589 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.953462589 + 1 x = -0.953462589 + 1 Combine like terms: -0.953462589 + 1 = 0.046537411 x = 0.046537411 Simplifying x = 0.046537411

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.953462589, 0.046537411}

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