x^2+14x+12=180

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Solution for x^2+14x+12=180 equation:


Simplifying
x2 + 14x + 12 = 180

Reorder the terms:
12 + 14x + x2 = 180

Solving
12 + 14x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
12 + -180 + 14x + x2 = 180 + -180

Combine like terms: 12 + -180 = -168
-168 + 14x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-168 + 14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '168' to each side of the equation.
-168 + 14x + 168 + x2 = 0 + 168

Reorder the terms:
-168 + 168 + 14x + x2 = 0 + 168

Combine like terms: -168 + 168 = 0
0 + 14x + x2 = 0 + 168
14x + x2 = 0 + 168

Combine like terms: 0 + 168 = 168
14x + x2 = 168

The x term is 14x.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14x + 49 + x2 = 168 + 49

Reorder the terms:
49 + 14x + x2 = 168 + 49

Combine like terms: 168 + 49 = 217
49 + 14x + x2 = 217

Factor a perfect square on the left side:
(x + 7)(x + 7) = 217

Calculate the square root of the right side: 14.730919863

Break this problem into two subproblems by setting 
(x + 7) equal to 14.730919863 and -14.730919863.

Subproblem 1

x + 7 = 14.730919863 Simplifying x + 7 = 14.730919863 Reorder the terms: 7 + x = 14.730919863 Solving 7 + x = 14.730919863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 14.730919863 + -7 Combine like terms: 7 + -7 = 0 0 + x = 14.730919863 + -7 x = 14.730919863 + -7 Combine like terms: 14.730919863 + -7 = 7.730919863 x = 7.730919863 Simplifying x = 7.730919863

Subproblem 2

x + 7 = -14.730919863 Simplifying x + 7 = -14.730919863 Reorder the terms: 7 + x = -14.730919863 Solving 7 + x = -14.730919863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -14.730919863 + -7 Combine like terms: 7 + -7 = 0 0 + x = -14.730919863 + -7 x = -14.730919863 + -7 Combine like terms: -14.730919863 + -7 = -21.730919863 x = -21.730919863 Simplifying x = -21.730919863

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.730919863, -21.730919863}

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