x^2+22x-12=0

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Solution for x^2+22x-12=0 equation:


Simplifying
x2 + 22x + -12 = 0

Reorder the terms:
-12 + 22x + x2 = 0

Solving
-12 + 22x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + 22x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + 22x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 22x + x2 = 0 + 12
22x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
22x + x2 = 12

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 = 12 + 121

Reorder the terms:
121 + 22x + x2 = 12 + 121

Combine like terms: 12 + 121 = 133
121 + 22x + x2 = 133

Factor a perfect square on the left side:
(x + 11)(x + 11) = 133

Calculate the square root of the right side: 11.532562595

Break this problem into two subproblems by setting 
(x + 11) equal to 11.532562595 and -11.532562595.

Subproblem 1

x + 11 = 11.532562595 Simplifying x + 11 = 11.532562595 Reorder the terms: 11 + x = 11.532562595 Solving 11 + x = 11.532562595 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 = 11.532562595 + -11 Combine like terms: 11 + -11 = 0 0 + x = 11.532562595 + -11 x = 11.532562595 + -11 Combine like terms: 11.532562595 + -11 = 0.532562595 x = 0.532562595 Simplifying x = 0.532562595

Subproblem 2

x + 11 = -11.532562595 Simplifying x + 11 = -11.532562595 Reorder the terms: 11 + x = -11.532562595 Solving 11 + x = -11.532562595 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 = -11.532562595 + -11 Combine like terms: 11 + -11 = 0 0 + x = -11.532562595 + -11 x = -11.532562595 + -11 Combine like terms: -11.532562595 + -11 = -22.532562595 x = -22.532562595 Simplifying x = -22.532562595

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.532562595, -22.532562595}

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