x^2+12x-504=0

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Solution for x^2+12x-504=0 equation:


Simplifying
x2 + 12x + -504 = 0

Reorder the terms:
-504 + 12x + x2 = 0

Solving
-504 + 12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '504' to each side of the equation.
-504 + 12x + 504 + x2 = 0 + 504

Reorder the terms:
-504 + 504 + 12x + x2 = 0 + 504

Combine like terms: -504 + 504 = 0
0 + 12x + x2 = 0 + 504
12x + x2 = 0 + 504

Combine like terms: 0 + 504 = 504
12x + x2 = 504

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 = 504 + 36

Reorder the terms:
36 + 12x + x2 = 504 + 36

Combine like terms: 504 + 36 = 540
36 + 12x + x2 = 540

Factor a perfect square on the left side:
(x + 6)(x + 6) = 540

Calculate the square root of the right side: 23.237900077

Break this problem into two subproblems by setting 
(x + 6) equal to 23.237900077 and -23.237900077.

Subproblem 1

x + 6 = 23.237900077 Simplifying x + 6 = 23.237900077 Reorder the terms: 6 + x = 23.237900077 Solving 6 + x = 23.237900077 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 = 23.237900077 + -6 Combine like terms: 6 + -6 = 0 0 + x = 23.237900077 + -6 x = 23.237900077 + -6 Combine like terms: 23.237900077 + -6 = 17.237900077 x = 17.237900077 Simplifying x = 17.237900077

Subproblem 2

x + 6 = -23.237900077 Simplifying x + 6 = -23.237900077 Reorder the terms: 6 + x = -23.237900077 Solving 6 + x = -23.237900077 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 = -23.237900077 + -6 Combine like terms: 6 + -6 = 0 0 + x = -23.237900077 + -6 x = -23.237900077 + -6 Combine like terms: -23.237900077 + -6 = -29.237900077 x = -29.237900077 Simplifying x = -29.237900077

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.237900077, -29.237900077}

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