x^2+22x+3=0

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Solution for x^2+22x+3=0 equation:


Simplifying
x2 + 22x + 3 = 0

Reorder the terms:
3 + 22x + x2 = 0

Solving
3 + 22x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 22x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + 22x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 22x + x2 = 0 + -3
22x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
22x + x2 = -3

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 = -3 + 121

Reorder the terms:
121 + 22x + x2 = -3 + 121

Combine like terms: -3 + 121 = 118
121 + 22x + x2 = 118

Factor a perfect square on the left side:
(x + 11)(x + 11) = 118

Calculate the square root of the right side: 10.862780491

Break this problem into two subproblems by setting 
(x + 11) equal to 10.862780491 and -10.862780491.

Subproblem 1

x + 11 = 10.862780491 Simplifying x + 11 = 10.862780491 Reorder the terms: 11 + x = 10.862780491 Solving 11 + x = 10.862780491 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 = 10.862780491 + -11 Combine like terms: 11 + -11 = 0 0 + x = 10.862780491 + -11 x = 10.862780491 + -11 Combine like terms: 10.862780491 + -11 = -0.137219509 x = -0.137219509 Simplifying x = -0.137219509

Subproblem 2

x + 11 = -10.862780491 Simplifying x + 11 = -10.862780491 Reorder the terms: 11 + x = -10.862780491 Solving 11 + x = -10.862780491 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 = -10.862780491 + -11 Combine like terms: 11 + -11 = 0 0 + x = -10.862780491 + -11 x = -10.862780491 + -11 Combine like terms: -10.862780491 + -11 = -21.862780491 x = -21.862780491 Simplifying x = -21.862780491

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.137219509, -21.862780491}

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