w^2+6w-11=0

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Solution for w^2+6w-11=0 equation:


Simplifying
w2 + 6w + -11 = 0

Reorder the terms:
-11 + 6w + w2 = 0

Solving
-11 + 6w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 6w + 11 + w2 = 0 + 11

Reorder the terms:
-11 + 11 + 6w + w2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 6w + w2 = 0 + 11
6w + w2 = 0 + 11

Combine like terms: 0 + 11 = 11
6w + w2 = 11

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 = 11 + 9

Reorder the terms:
9 + 6w + w2 = 11 + 9

Combine like terms: 11 + 9 = 20
9 + 6w + w2 = 20

Factor a perfect square on the left side:
(w + 3)(w + 3) = 20

Calculate the square root of the right side: 4.472135955

Break this problem into two subproblems by setting 
(w + 3) equal to 4.472135955 and -4.472135955.

Subproblem 1

w + 3 = 4.472135955 Simplifying w + 3 = 4.472135955 Reorder the terms: 3 + w = 4.472135955 Solving 3 + w = 4.472135955 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 = 4.472135955 + -3 Combine like terms: 3 + -3 = 0 0 + w = 4.472135955 + -3 w = 4.472135955 + -3 Combine like terms: 4.472135955 + -3 = 1.472135955 w = 1.472135955 Simplifying w = 1.472135955

Subproblem 2

w + 3 = -4.472135955 Simplifying w + 3 = -4.472135955 Reorder the terms: 3 + w = -4.472135955 Solving 3 + w = -4.472135955 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 = -4.472135955 + -3 Combine like terms: 3 + -3 = 0 0 + w = -4.472135955 + -3 w = -4.472135955 + -3 Combine like terms: -4.472135955 + -3 = -7.472135955 w = -7.472135955 Simplifying w = -7.472135955

Solution

The solution to the problem is based on the solutions from the subproblems. w = {1.472135955, -7.472135955}

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