x^2-22x+2=8

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Solution for x^2-22x+2=8 equation:


Simplifying
x2 + -22x + 2 = 8

Reorder the terms:
2 + -22x + x2 = 8

Solving
2 + -22x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
2 + -8 + -22x + x2 = 8 + -8

Combine like terms: 2 + -8 = -6
-6 + -22x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-6 + -22x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -22x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -22x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -22x + x2 = 0 + 6
-22x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-22x + x2 = 6

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 = 6 + 121

Reorder the terms:
121 + -22x + x2 = 6 + 121

Combine like terms: 6 + 121 = 127
121 + -22x + x2 = 127

Factor a perfect square on the left side:
(x + -11)(x + -11) = 127

Calculate the square root of the right side: 11.26942767

Break this problem into two subproblems by setting 
(x + -11) equal to 11.26942767 and -11.26942767.

Subproblem 1

x + -11 = 11.26942767 Simplifying x + -11 = 11.26942767 Reorder the terms: -11 + x = 11.26942767 Solving -11 + x = 11.26942767 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 = 11.26942767 + 11 Combine like terms: -11 + 11 = 0 0 + x = 11.26942767 + 11 x = 11.26942767 + 11 Combine like terms: 11.26942767 + 11 = 22.26942767 x = 22.26942767 Simplifying x = 22.26942767

Subproblem 2

x + -11 = -11.26942767 Simplifying x + -11 = -11.26942767 Reorder the terms: -11 + x = -11.26942767 Solving -11 + x = -11.26942767 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 = -11.26942767 + 11 Combine like terms: -11 + 11 = 0 0 + x = -11.26942767 + 11 x = -11.26942767 + 11 Combine like terms: -11.26942767 + 11 = -0.26942767 x = -0.26942767 Simplifying x = -0.26942767

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.26942767, -0.26942767}

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