x^2-12x-92=0

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Solution for x^2-12x-92=0 equation:


Simplifying
x2 + -12x + -92 = 0

Reorder the terms:
-92 + -12x + x2 = 0

Solving
-92 + -12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '92' to each side of the equation.
-92 + -12x + 92 + x2 = 0 + 92

Reorder the terms:
-92 + 92 + -12x + x2 = 0 + 92

Combine like terms: -92 + 92 = 0
0 + -12x + x2 = 0 + 92
-12x + x2 = 0 + 92

Combine like terms: 0 + 92 = 92
-12x + x2 = 92

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = 92 + 36

Reorder the terms:
36 + -12x + x2 = 92 + 36

Combine like terms: 92 + 36 = 128
36 + -12x + x2 = 128

Factor a perfect square on the left side:
(x + -6)(x + -6) = 128

Calculate the square root of the right side: 11.313708499

Break this problem into two subproblems by setting 
(x + -6) equal to 11.313708499 and -11.313708499.

Subproblem 1

x + -6 = 11.313708499 Simplifying x + -6 = 11.313708499 Reorder the terms: -6 + x = 11.313708499 Solving -6 + x = 11.313708499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 11.313708499 + 6 Combine like terms: -6 + 6 = 0 0 + x = 11.313708499 + 6 x = 11.313708499 + 6 Combine like terms: 11.313708499 + 6 = 17.313708499 x = 17.313708499 Simplifying x = 17.313708499

Subproblem 2

x + -6 = -11.313708499 Simplifying x + -6 = -11.313708499 Reorder the terms: -6 + x = -11.313708499 Solving -6 + x = -11.313708499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -11.313708499 + 6 Combine like terms: -6 + 6 = 0 0 + x = -11.313708499 + 6 x = -11.313708499 + 6 Combine like terms: -11.313708499 + 6 = -5.313708499 x = -5.313708499 Simplifying x = -5.313708499

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.313708499, -5.313708499}

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