11x^2-22.6x+1.69=0

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Solution for 11x^2-22.6x+1.69=0 equation:


Simplifying
11x2 + -22.6x + 1.69 = 0

Reorder the terms:
1.69 + -22.6x + 11x2 = 0

Solving
1.69 + -22.6x + 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'.
0.1536363636 + -2.054545455x + x2 = 0

Move the constant term to the right:

Add '-0.1536363636' to each side of the equation.
0.1536363636 + -2.054545455x + -0.1536363636 + x2 = 0 + -0.1536363636

Reorder the terms:
0.1536363636 + -0.1536363636 + -2.054545455x + x2 = 0 + -0.1536363636

Combine like terms: 0.1536363636 + -0.1536363636 = 0.0000000000
0.0000000000 + -2.054545455x + x2 = 0 + -0.1536363636
-2.054545455x + x2 = 0 + -0.1536363636

Combine like terms: 0 + -0.1536363636 = -0.1536363636
-2.054545455x + x2 = -0.1536363636

The x term is -2.054545455x.  Take half its coefficient (-1.027272728).
Square it (1.055289258) and add it to both sides.

Add '1.055289258' to each side of the equation.
-2.054545455x + 1.055289258 + x2 = -0.1536363636 + 1.055289258

Reorder the terms:
1.055289258 + -2.054545455x + x2 = -0.1536363636 + 1.055289258

Combine like terms: -0.1536363636 + 1.055289258 = 0.9016528944
1.055289258 + -2.054545455x + x2 = 0.9016528944

Factor a perfect square on the left side:
(x + -1.027272728)(x + -1.027272728) = 0.9016528944

Calculate the square root of the right side: 0.94955405

Break this problem into two subproblems by setting 
(x + -1.027272728) equal to 0.94955405 and -0.94955405.

Subproblem 1

x + -1.027272728 = 0.94955405 Simplifying x + -1.027272728 = 0.94955405 Reorder the terms: -1.027272728 + x = 0.94955405 Solving -1.027272728 + x = 0.94955405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.027272728' to each side of the equation. -1.027272728 + 1.027272728 + x = 0.94955405 + 1.027272728 Combine like terms: -1.027272728 + 1.027272728 = 0.000000000 0.000000000 + x = 0.94955405 + 1.027272728 x = 0.94955405 + 1.027272728 Combine like terms: 0.94955405 + 1.027272728 = 1.976826778 x = 1.976826778 Simplifying x = 1.976826778

Subproblem 2

x + -1.027272728 = -0.94955405 Simplifying x + -1.027272728 = -0.94955405 Reorder the terms: -1.027272728 + x = -0.94955405 Solving -1.027272728 + x = -0.94955405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.027272728' to each side of the equation. -1.027272728 + 1.027272728 + x = -0.94955405 + 1.027272728 Combine like terms: -1.027272728 + 1.027272728 = 0.000000000 0.000000000 + x = -0.94955405 + 1.027272728 x = -0.94955405 + 1.027272728 Combine like terms: -0.94955405 + 1.027272728 = 0.077718678 x = 0.077718678 Simplifying x = 0.077718678

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.976826778, 0.077718678}

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