w+4=w^2+6w-11

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Solution for w+4=w^2+6w-11 equation:


Simplifying
w + 4 = w2 + 6w + -11

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

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

Solving
4 + w = -11 + 6w + w2

Solving for variable 'w'.

Reorder the terms:
4 + 11 + w + -6w + -1w2 = -11 + 6w + w2 + 11 + -6w + -1w2

Combine like terms: 4 + 11 = 15
15 + w + -6w + -1w2 = -11 + 6w + w2 + 11 + -6w + -1w2

Combine like terms: w + -6w = -5w
15 + -5w + -1w2 = -11 + 6w + w2 + 11 + -6w + -1w2

Reorder the terms:
15 + -5w + -1w2 = -11 + 11 + 6w + -6w + w2 + -1w2

Combine like terms: -11 + 11 = 0
15 + -5w + -1w2 = 0 + 6w + -6w + w2 + -1w2
15 + -5w + -1w2 = 6w + -6w + w2 + -1w2

Combine like terms: 6w + -6w = 0
15 + -5w + -1w2 = 0 + w2 + -1w2
15 + -5w + -1w2 = w2 + -1w2

Combine like terms: w2 + -1w2 = 0
15 + -5w + -1w2 = 0

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

Divide each side by '-1'.
-15 + 5w + w2 = 0

Move the constant term to the right:

Add '15' to each side of the equation.
-15 + 5w + 15 + w2 = 0 + 15

Reorder the terms:
-15 + 15 + 5w + w2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 5w + w2 = 0 + 15
5w + w2 = 0 + 15

Combine like terms: 0 + 15 = 15
5w + w2 = 15

The w term is 5w.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5w + 6.25 + w2 = 15 + 6.25

Reorder the terms:
6.25 + 5w + w2 = 15 + 6.25

Combine like terms: 15 + 6.25 = 21.25
6.25 + 5w + w2 = 21.25

Factor a perfect square on the left side:
(w + 2.5)(w + 2.5) = 21.25

Calculate the square root of the right side: 4.609772229

Break this problem into two subproblems by setting 
(w + 2.5) equal to 4.609772229 and -4.609772229.

Subproblem 1

w + 2.5 = 4.609772229 Simplifying w + 2.5 = 4.609772229 Reorder the terms: 2.5 + w = 4.609772229 Solving 2.5 + w = 4.609772229 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + w = 4.609772229 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + w = 4.609772229 + -2.5 w = 4.609772229 + -2.5 Combine like terms: 4.609772229 + -2.5 = 2.109772229 w = 2.109772229 Simplifying w = 2.109772229

Subproblem 2

w + 2.5 = -4.609772229 Simplifying w + 2.5 = -4.609772229 Reorder the terms: 2.5 + w = -4.609772229 Solving 2.5 + w = -4.609772229 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + w = -4.609772229 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + w = -4.609772229 + -2.5 w = -4.609772229 + -2.5 Combine like terms: -4.609772229 + -2.5 = -7.109772229 w = -7.109772229 Simplifying w = -7.109772229

Solution

The solution to the problem is based on the solutions from the subproblems. w = {2.109772229, -7.109772229}

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