x^2+12x+36=12

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


Simplifying
x2 + 12x + 36 = 12

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

Solving
36 + 12x + x2 = 12

Solving for variable 'x'.

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

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

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

Begin completing the square.

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + 12x + -24 + x2 = 0 + -24

Reorder the terms:
24 + -24 + 12x + x2 = 0 + -24

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

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

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 = -24 + 36

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

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

Factor a perfect square on the left side:
(x + 6)(x + 6) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(x + 6) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + 6 = 3.464101615 Simplifying x + 6 = 3.464101615 Reorder the terms: 6 + x = 3.464101615 Solving 6 + x = 3.464101615 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 = 3.464101615 + -6 Combine like terms: 6 + -6 = 0 0 + x = 3.464101615 + -6 x = 3.464101615 + -6 Combine like terms: 3.464101615 + -6 = -2.535898385 x = -2.535898385 Simplifying x = -2.535898385

Subproblem 2

x + 6 = -3.464101615 Simplifying x + 6 = -3.464101615 Reorder the terms: 6 + x = -3.464101615 Solving 6 + x = -3.464101615 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 = -3.464101615 + -6 Combine like terms: 6 + -6 = 0 0 + x = -3.464101615 + -6 x = -3.464101615 + -6 Combine like terms: -3.464101615 + -6 = -9.464101615 x = -9.464101615 Simplifying x = -9.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.535898385, -9.464101615}

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