x^2-12x-36+x^2=x^2+12x+36

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Solution for x^2-12x-36+x^2=x^2+12x+36 equation:


Simplifying
x2 + -12x + -36 + x2 = x2 + 12x + 36

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

Combine like terms: x2 + x2 = 2x2
-36 + -12x + 2x2 = x2 + 12x + 36

Reorder the terms:
-36 + -12x + 2x2 = 36 + 12x + x2

Solving
-36 + -12x + 2x2 = 36 + 12x + x2

Solving for variable 'x'.

Reorder the terms:
-36 + -36 + -12x + -12x + 2x2 + -1x2 = 36 + 12x + x2 + -36 + -12x + -1x2

Combine like terms: -36 + -36 = -72
-72 + -12x + -12x + 2x2 + -1x2 = 36 + 12x + x2 + -36 + -12x + -1x2

Combine like terms: -12x + -12x = -24x
-72 + -24x + 2x2 + -1x2 = 36 + 12x + x2 + -36 + -12x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-72 + -24x + 1x2 = 36 + 12x + x2 + -36 + -12x + -1x2

Reorder the terms:
-72 + -24x + 1x2 = 36 + -36 + 12x + -12x + x2 + -1x2

Combine like terms: 36 + -36 = 0
-72 + -24x + 1x2 = 0 + 12x + -12x + x2 + -1x2
-72 + -24x + 1x2 = 12x + -12x + x2 + -1x2

Combine like terms: 12x + -12x = 0
-72 + -24x + 1x2 = 0 + x2 + -1x2
-72 + -24x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-72 + -24x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '72' to each side of the equation.
-72 + -24x + 72 + x2 = 0 + 72

Reorder the terms:
-72 + 72 + -24x + x2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + -24x + x2 = 0 + 72
-24x + x2 = 0 + 72

Combine like terms: 0 + 72 = 72
-24x + x2 = 72

The x term is -24x.  Take half its coefficient (-12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
-24x + 144 + x2 = 72 + 144

Reorder the terms:
144 + -24x + x2 = 72 + 144

Combine like terms: 72 + 144 = 216
144 + -24x + x2 = 216

Factor a perfect square on the left side:
(x + -12)(x + -12) = 216

Calculate the square root of the right side: 14.696938457

Break this problem into two subproblems by setting 
(x + -12) equal to 14.696938457 and -14.696938457.

Subproblem 1

x + -12 = 14.696938457 Simplifying x + -12 = 14.696938457 Reorder the terms: -12 + x = 14.696938457 Solving -12 + x = 14.696938457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 14.696938457 + 12 Combine like terms: -12 + 12 = 0 0 + x = 14.696938457 + 12 x = 14.696938457 + 12 Combine like terms: 14.696938457 + 12 = 26.696938457 x = 26.696938457 Simplifying x = 26.696938457

Subproblem 2

x + -12 = -14.696938457 Simplifying x + -12 = -14.696938457 Reorder the terms: -12 + x = -14.696938457 Solving -12 + x = -14.696938457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = -14.696938457 + 12 Combine like terms: -12 + 12 = 0 0 + x = -14.696938457 + 12 x = -14.696938457 + 12 Combine like terms: -14.696938457 + 12 = -2.696938457 x = -2.696938457 Simplifying x = -2.696938457

Solution

The solution to the problem is based on the solutions from the subproblems. x = {26.696938457, -2.696938457}

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