x^2+12x-114=0

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Solution for x^2+12x-114=0 equation:


Simplifying
x2 + 12x + -114 = 0

Reorder the terms:
-114 + 12x + x2 = 0

Solving
-114 + 12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '114' to each side of the equation.
-114 + 12x + 114 + x2 = 0 + 114

Reorder the terms:
-114 + 114 + 12x + x2 = 0 + 114

Combine like terms: -114 + 114 = 0
0 + 12x + x2 = 0 + 114
12x + x2 = 0 + 114

Combine like terms: 0 + 114 = 114
12x + x2 = 114

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 = 114 + 36

Reorder the terms:
36 + 12x + x2 = 114 + 36

Combine like terms: 114 + 36 = 150
36 + 12x + x2 = 150

Factor a perfect square on the left side:
(x + 6)(x + 6) = 150

Calculate the square root of the right side: 12.247448714

Break this problem into two subproblems by setting 
(x + 6) equal to 12.247448714 and -12.247448714.

Subproblem 1

x + 6 = 12.247448714 Simplifying x + 6 = 12.247448714 Reorder the terms: 6 + x = 12.247448714 Solving 6 + x = 12.247448714 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 = 12.247448714 + -6 Combine like terms: 6 + -6 = 0 0 + x = 12.247448714 + -6 x = 12.247448714 + -6 Combine like terms: 12.247448714 + -6 = 6.247448714 x = 6.247448714 Simplifying x = 6.247448714

Subproblem 2

x + 6 = -12.247448714 Simplifying x + 6 = -12.247448714 Reorder the terms: 6 + x = -12.247448714 Solving 6 + x = -12.247448714 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 = -12.247448714 + -6 Combine like terms: 6 + -6 = 0 0 + x = -12.247448714 + -6 x = -12.247448714 + -6 Combine like terms: -12.247448714 + -6 = -18.247448714 x = -18.247448714 Simplifying x = -18.247448714

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.247448714, -18.247448714}

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