x^2+16x-360=0

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Solution for x^2+16x-360=0 equation:


Simplifying
x2 + 16x + -360 = 0

Reorder the terms:
-360 + 16x + x2 = 0

Solving
-360 + 16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '360' to each side of the equation.
-360 + 16x + 360 + x2 = 0 + 360

Reorder the terms:
-360 + 360 + 16x + x2 = 0 + 360

Combine like terms: -360 + 360 = 0
0 + 16x + x2 = 0 + 360
16x + x2 = 0 + 360

Combine like terms: 0 + 360 = 360
16x + x2 = 360

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 360 + 64

Reorder the terms:
64 + 16x + x2 = 360 + 64

Combine like terms: 360 + 64 = 424
64 + 16x + x2 = 424

Factor a perfect square on the left side:
(x + 8)(x + 8) = 424

Calculate the square root of the right side: 20.591260282

Break this problem into two subproblems by setting 
(x + 8) equal to 20.591260282 and -20.591260282.

Subproblem 1

x + 8 = 20.591260282 Simplifying x + 8 = 20.591260282 Reorder the terms: 8 + x = 20.591260282 Solving 8 + x = 20.591260282 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 20.591260282 + -8 Combine like terms: 8 + -8 = 0 0 + x = 20.591260282 + -8 x = 20.591260282 + -8 Combine like terms: 20.591260282 + -8 = 12.591260282 x = 12.591260282 Simplifying x = 12.591260282

Subproblem 2

x + 8 = -20.591260282 Simplifying x + 8 = -20.591260282 Reorder the terms: 8 + x = -20.591260282 Solving 8 + x = -20.591260282 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -20.591260282 + -8 Combine like terms: 8 + -8 = 0 0 + x = -20.591260282 + -8 x = -20.591260282 + -8 Combine like terms: -20.591260282 + -8 = -28.591260282 x = -28.591260282 Simplifying x = -28.591260282

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.591260282, -28.591260282}

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