0=x^2+16x-163

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Solution for 0=x^2+16x-163 equation:


Simplifying
0 = x2 + 16x + -163

Reorder the terms:
0 = -163 + 16x + x2

Solving
0 = -163 + 16x + x2

Solving for variable 'x'.

Combine like terms: 0 + 163 = 163
163 + -16x + -1x2 = -163 + 16x + x2 + 163 + -16x + -1x2

Reorder the terms:
163 + -16x + -1x2 = -163 + 163 + 16x + -16x + x2 + -1x2

Combine like terms: -163 + 163 = 0
163 + -16x + -1x2 = 0 + 16x + -16x + x2 + -1x2
163 + -16x + -1x2 = 16x + -16x + x2 + -1x2

Combine like terms: 16x + -16x = 0
163 + -16x + -1x2 = 0 + x2 + -1x2
163 + -16x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
163 + -16x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-163 + 16x + x2 = 0

Move the constant term to the right:

Add '163' to each side of the equation.
-163 + 16x + 163 + x2 = 0 + 163

Reorder the terms:
-163 + 163 + 16x + x2 = 0 + 163

Combine like terms: -163 + 163 = 0
0 + 16x + x2 = 0 + 163
16x + x2 = 0 + 163

Combine like terms: 0 + 163 = 163
16x + x2 = 163

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 = 163 + 64

Reorder the terms:
64 + 16x + x2 = 163 + 64

Combine like terms: 163 + 64 = 227
64 + 16x + x2 = 227

Factor a perfect square on the left side:
(x + 8)(x + 8) = 227

Calculate the square root of the right side: 15.066519173

Break this problem into two subproblems by setting 
(x + 8) equal to 15.066519173 and -15.066519173.

Subproblem 1

x + 8 = 15.066519173 Simplifying x + 8 = 15.066519173 Reorder the terms: 8 + x = 15.066519173 Solving 8 + x = 15.066519173 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 = 15.066519173 + -8 Combine like terms: 8 + -8 = 0 0 + x = 15.066519173 + -8 x = 15.066519173 + -8 Combine like terms: 15.066519173 + -8 = 7.066519173 x = 7.066519173 Simplifying x = 7.066519173

Subproblem 2

x + 8 = -15.066519173 Simplifying x + 8 = -15.066519173 Reorder the terms: 8 + x = -15.066519173 Solving 8 + x = -15.066519173 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 = -15.066519173 + -8 Combine like terms: 8 + -8 = 0 0 + x = -15.066519173 + -8 x = -15.066519173 + -8 Combine like terms: -15.066519173 + -8 = -23.066519173 x = -23.066519173 Simplifying x = -23.066519173

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.066519173, -23.066519173}

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