x^2+12x+-148=0

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Solution for x^2+12x+-148=0 equation:


Simplifying
x2 + 12x + -148 = 0

Reorder the terms:
-148 + 12x + x2 = 0

Solving
-148 + 12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '148' to each side of the equation.
-148 + 12x + 148 + x2 = 0 + 148

Reorder the terms:
-148 + 148 + 12x + x2 = 0 + 148

Combine like terms: -148 + 148 = 0
0 + 12x + x2 = 0 + 148
12x + x2 = 0 + 148

Combine like terms: 0 + 148 = 148
12x + x2 = 148

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 = 148 + 36

Reorder the terms:
36 + 12x + x2 = 148 + 36

Combine like terms: 148 + 36 = 184
36 + 12x + x2 = 184

Factor a perfect square on the left side:
(x + 6)(x + 6) = 184

Calculate the square root of the right side: 13.564659966

Break this problem into two subproblems by setting 
(x + 6) equal to 13.564659966 and -13.564659966.

Subproblem 1

x + 6 = 13.564659966 Simplifying x + 6 = 13.564659966 Reorder the terms: 6 + x = 13.564659966 Solving 6 + x = 13.564659966 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 = 13.564659966 + -6 Combine like terms: 6 + -6 = 0 0 + x = 13.564659966 + -6 x = 13.564659966 + -6 Combine like terms: 13.564659966 + -6 = 7.564659966 x = 7.564659966 Simplifying x = 7.564659966

Subproblem 2

x + 6 = -13.564659966 Simplifying x + 6 = -13.564659966 Reorder the terms: 6 + x = -13.564659966 Solving 6 + x = -13.564659966 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 = -13.564659966 + -6 Combine like terms: 6 + -6 = 0 0 + x = -13.564659966 + -6 x = -13.564659966 + -6 Combine like terms: -13.564659966 + -6 = -19.564659966 x = -19.564659966 Simplifying x = -19.564659966

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.564659966, -19.564659966}

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