x^2+16x-160=0

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Solution for x^2+16x-160=0 equation:


Simplifying
x2 + 16x + -160 = 0

Reorder the terms:
-160 + 16x + x2 = 0

Solving
-160 + 16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '160' to each side of the equation.
-160 + 16x + 160 + x2 = 0 + 160

Reorder the terms:
-160 + 160 + 16x + x2 = 0 + 160

Combine like terms: -160 + 160 = 0
0 + 16x + x2 = 0 + 160
16x + x2 = 0 + 160

Combine like terms: 0 + 160 = 160
16x + x2 = 160

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 = 160 + 64

Reorder the terms:
64 + 16x + x2 = 160 + 64

Combine like terms: 160 + 64 = 224
64 + 16x + x2 = 224

Factor a perfect square on the left side:
(x + 8)(x + 8) = 224

Calculate the square root of the right side: 14.966629547

Break this problem into two subproblems by setting 
(x + 8) equal to 14.966629547 and -14.966629547.

Subproblem 1

x + 8 = 14.966629547 Simplifying x + 8 = 14.966629547 Reorder the terms: 8 + x = 14.966629547 Solving 8 + x = 14.966629547 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 = 14.966629547 + -8 Combine like terms: 8 + -8 = 0 0 + x = 14.966629547 + -8 x = 14.966629547 + -8 Combine like terms: 14.966629547 + -8 = 6.966629547 x = 6.966629547 Simplifying x = 6.966629547

Subproblem 2

x + 8 = -14.966629547 Simplifying x + 8 = -14.966629547 Reorder the terms: 8 + x = -14.966629547 Solving 8 + x = -14.966629547 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 = -14.966629547 + -8 Combine like terms: 8 + -8 = 0 0 + x = -14.966629547 + -8 x = -14.966629547 + -8 Combine like terms: -14.966629547 + -8 = -22.966629547 x = -22.966629547 Simplifying x = -22.966629547

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.966629547, -22.966629547}

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