w^2+6w-220=0

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Solution for w^2+6w-220=0 equation:


Simplifying
w2 + 6w + -220 = 0

Reorder the terms:
-220 + 6w + w2 = 0

Solving
-220 + 6w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '220' to each side of the equation.
-220 + 6w + 220 + w2 = 0 + 220

Reorder the terms:
-220 + 220 + 6w + w2 = 0 + 220

Combine like terms: -220 + 220 = 0
0 + 6w + w2 = 0 + 220
6w + w2 = 0 + 220

Combine like terms: 0 + 220 = 220
6w + w2 = 220

The w term is 6w.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6w + 9 + w2 = 220 + 9

Reorder the terms:
9 + 6w + w2 = 220 + 9

Combine like terms: 220 + 9 = 229
9 + 6w + w2 = 229

Factor a perfect square on the left side:
(w + 3)(w + 3) = 229

Calculate the square root of the right side: 15.13274595

Break this problem into two subproblems by setting 
(w + 3) equal to 15.13274595 and -15.13274595.

Subproblem 1

w + 3 = 15.13274595 Simplifying w + 3 = 15.13274595 Reorder the terms: 3 + w = 15.13274595 Solving 3 + w = 15.13274595 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = 15.13274595 + -3 Combine like terms: 3 + -3 = 0 0 + w = 15.13274595 + -3 w = 15.13274595 + -3 Combine like terms: 15.13274595 + -3 = 12.13274595 w = 12.13274595 Simplifying w = 12.13274595

Subproblem 2

w + 3 = -15.13274595 Simplifying w + 3 = -15.13274595 Reorder the terms: 3 + w = -15.13274595 Solving 3 + w = -15.13274595 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + w = -15.13274595 + -3 Combine like terms: 3 + -3 = 0 0 + w = -15.13274595 + -3 w = -15.13274595 + -3 Combine like terms: -15.13274595 + -3 = -18.13274595 w = -18.13274595 Simplifying w = -18.13274595

Solution

The solution to the problem is based on the solutions from the subproblems. w = {12.13274595, -18.13274595}

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