y^2-22y+1=0

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


Simplifying
y2 + -22y + 1 = 0

Reorder the terms:
1 + -22y + y2 = 0

Solving
1 + -22y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -22y + -1 + y2 = 0 + -1

Reorder the terms:
1 + -1 + -22y + y2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -22y + y2 = 0 + -1
-22y + y2 = 0 + -1

Combine like terms: 0 + -1 = -1
-22y + y2 = -1

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

Add '121' to each side of the equation.
-22y + 121 + y2 = -1 + 121

Reorder the terms:
121 + -22y + y2 = -1 + 121

Combine like terms: -1 + 121 = 120
121 + -22y + y2 = 120

Factor a perfect square on the left side:
(y + -11)(y + -11) = 120

Calculate the square root of the right side: 10.95445115

Break this problem into two subproblems by setting 
(y + -11) equal to 10.95445115 and -10.95445115.

Subproblem 1

y + -11 = 10.95445115 Simplifying y + -11 = 10.95445115 Reorder the terms: -11 + y = 10.95445115 Solving -11 + y = 10.95445115 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + y = 10.95445115 + 11 Combine like terms: -11 + 11 = 0 0 + y = 10.95445115 + 11 y = 10.95445115 + 11 Combine like terms: 10.95445115 + 11 = 21.95445115 y = 21.95445115 Simplifying y = 21.95445115

Subproblem 2

y + -11 = -10.95445115 Simplifying y + -11 = -10.95445115 Reorder the terms: -11 + y = -10.95445115 Solving -11 + y = -10.95445115 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + y = -10.95445115 + 11 Combine like terms: -11 + 11 = 0 0 + y = -10.95445115 + 11 y = -10.95445115 + 11 Combine like terms: -10.95445115 + 11 = 0.04554885 y = 0.04554885 Simplifying y = 0.04554885

Solution

The solution to the problem is based on the solutions from the subproblems. y = {21.95445115, 0.04554885}

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