x^2+22x+22=0

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Solution for x^2+22x+22=0 equation:


Simplifying
x2 + 22x + 22 = 0

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

Solving
22 + 22x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

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

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

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

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

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 = -22 + 121

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

Combine like terms: -22 + 121 = 99
121 + 22x + x2 = 99

Factor a perfect square on the left side:
(x + 11)(x + 11) = 99

Calculate the square root of the right side: 9.949874371

Break this problem into two subproblems by setting 
(x + 11) equal to 9.949874371 and -9.949874371.

Subproblem 1

x + 11 = 9.949874371 Simplifying x + 11 = 9.949874371 Reorder the terms: 11 + x = 9.949874371 Solving 11 + x = 9.949874371 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 = 9.949874371 + -11 Combine like terms: 11 + -11 = 0 0 + x = 9.949874371 + -11 x = 9.949874371 + -11 Combine like terms: 9.949874371 + -11 = -1.050125629 x = -1.050125629 Simplifying x = -1.050125629

Subproblem 2

x + 11 = -9.949874371 Simplifying x + 11 = -9.949874371 Reorder the terms: 11 + x = -9.949874371 Solving 11 + x = -9.949874371 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 = -9.949874371 + -11 Combine like terms: 11 + -11 = 0 0 + x = -9.949874371 + -11 x = -9.949874371 + -11 Combine like terms: -9.949874371 + -11 = -20.949874371 x = -20.949874371 Simplifying x = -20.949874371

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.050125629, -20.949874371}

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