(w+2)(w+2)-2(w+2)+9w=8

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Solution for (w+2)(w+2)-2(w+2)+9w=8 equation:


Simplifying
(w + 2)(w + 2) + -2(w + 2) + 9w = 8

Reorder the terms:
(2 + w)(w + 2) + -2(w + 2) + 9w = 8

Reorder the terms:
(2 + w)(2 + w) + -2(w + 2) + 9w = 8

Multiply (2 + w) * (2 + w)
(2(2 + w) + w(2 + w)) + -2(w + 2) + 9w = 8
((2 * 2 + w * 2) + w(2 + w)) + -2(w + 2) + 9w = 8
((4 + 2w) + w(2 + w)) + -2(w + 2) + 9w = 8
(4 + 2w + (2 * w + w * w)) + -2(w + 2) + 9w = 8
(4 + 2w + (2w + w2)) + -2(w + 2) + 9w = 8

Combine like terms: 2w + 2w = 4w
(4 + 4w + w2) + -2(w + 2) + 9w = 8

Reorder the terms:
4 + 4w + w2 + -2(2 + w) + 9w = 8
4 + 4w + w2 + (2 * -2 + w * -2) + 9w = 8
4 + 4w + w2 + (-4 + -2w) + 9w = 8

Reorder the terms:
4 + -4 + 4w + -2w + 9w + w2 = 8

Combine like terms: 4 + -4 = 0
0 + 4w + -2w + 9w + w2 = 8
4w + -2w + 9w + w2 = 8

Combine like terms: 4w + -2w = 2w
2w + 9w + w2 = 8

Combine like terms: 2w + 9w = 11w
11w + w2 = 8

Solving
11w + w2 = 8

Solving for variable 'w'.

Reorder the terms:
-8 + 11w + w2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 11w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 11w + 8 + w2 = 0 + 8

Reorder the terms:
-8 + 8 + 11w + w2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 11w + w2 = 0 + 8
11w + w2 = 0 + 8

Combine like terms: 0 + 8 = 8
11w + w2 = 8

The w term is 11w.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11w + 30.25 + w2 = 8 + 30.25

Reorder the terms:
30.25 + 11w + w2 = 8 + 30.25

Combine like terms: 8 + 30.25 = 38.25
30.25 + 11w + w2 = 38.25

Factor a perfect square on the left side:
(w + 5.5)(w + 5.5) = 38.25

Calculate the square root of the right side: 6.184658438

Break this problem into two subproblems by setting 
(w + 5.5) equal to 6.184658438 and -6.184658438.

Subproblem 1

w + 5.5 = 6.184658438 Simplifying w + 5.5 = 6.184658438 Reorder the terms: 5.5 + w = 6.184658438 Solving 5.5 + w = 6.184658438 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + w = 6.184658438 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + w = 6.184658438 + -5.5 w = 6.184658438 + -5.5 Combine like terms: 6.184658438 + -5.5 = 0.684658438 w = 0.684658438 Simplifying w = 0.684658438

Subproblem 2

w + 5.5 = -6.184658438 Simplifying w + 5.5 = -6.184658438 Reorder the terms: 5.5 + w = -6.184658438 Solving 5.5 + w = -6.184658438 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + w = -6.184658438 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + w = -6.184658438 + -5.5 w = -6.184658438 + -5.5 Combine like terms: -6.184658438 + -5.5 = -11.684658438 w = -11.684658438 Simplifying w = -11.684658438

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.684658438, -11.684658438}

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