w^2+4w+4-75=0

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Solution for w^2+4w+4-75=0 equation:


Simplifying
w2 + 4w + 4 + -75 = 0

Reorder the terms:
4 + -75 + 4w + w2 = 0

Combine like terms: 4 + -75 = -71
-71 + 4w + w2 = 0

Solving
-71 + 4w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '71' to each side of the equation.
-71 + 4w + 71 + w2 = 0 + 71

Reorder the terms:
-71 + 71 + 4w + w2 = 0 + 71

Combine like terms: -71 + 71 = 0
0 + 4w + w2 = 0 + 71
4w + w2 = 0 + 71

Combine like terms: 0 + 71 = 71
4w + w2 = 71

The w term is 4w.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4w + 4 + w2 = 71 + 4

Reorder the terms:
4 + 4w + w2 = 71 + 4

Combine like terms: 71 + 4 = 75
4 + 4w + w2 = 75

Factor a perfect square on the left side:
(w + 2)(w + 2) = 75

Calculate the square root of the right side: 8.660254038

Break this problem into two subproblems by setting 
(w + 2) equal to 8.660254038 and -8.660254038.

Subproblem 1

w + 2 = 8.660254038 Simplifying w + 2 = 8.660254038 Reorder the terms: 2 + w = 8.660254038 Solving 2 + w = 8.660254038 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + w = 8.660254038 + -2 Combine like terms: 2 + -2 = 0 0 + w = 8.660254038 + -2 w = 8.660254038 + -2 Combine like terms: 8.660254038 + -2 = 6.660254038 w = 6.660254038 Simplifying w = 6.660254038

Subproblem 2

w + 2 = -8.660254038 Simplifying w + 2 = -8.660254038 Reorder the terms: 2 + w = -8.660254038 Solving 2 + w = -8.660254038 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + w = -8.660254038 + -2 Combine like terms: 2 + -2 = 0 0 + w = -8.660254038 + -2 w = -8.660254038 + -2 Combine like terms: -8.660254038 + -2 = -10.660254038 w = -10.660254038 Simplifying w = -10.660254038

Solution

The solution to the problem is based on the solutions from the subproblems. w = {6.660254038, -10.660254038}

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