w(w+4)=144

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Solution for w(w+4)=144 equation:


Simplifying
w(w + 4) = 144

Reorder the terms:
w(4 + w) = 144
(4 * w + w * w) = 144
(4w + w2) = 144

Solving
4w + w2 = 144

Solving for variable 'w'.

Reorder the terms:
-144 + 4w + w2 = 144 + -144

Combine like terms: 144 + -144 = 0
-144 + 4w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '144' to each side of the equation.
-144 + 4w + 144 + w2 = 0 + 144

Reorder the terms:
-144 + 144 + 4w + w2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 4w + w2 = 0 + 144
4w + w2 = 0 + 144

Combine like terms: 0 + 144 = 144
4w + w2 = 144

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 = 144 + 4

Reorder the terms:
4 + 4w + w2 = 144 + 4

Combine like terms: 144 + 4 = 148
4 + 4w + w2 = 148

Factor a perfect square on the left side:
(w + 2)(w + 2) = 148

Calculate the square root of the right side: 12.165525061

Break this problem into two subproblems by setting 
(w + 2) equal to 12.165525061 and -12.165525061.

Subproblem 1

w + 2 = 12.165525061 Simplifying w + 2 = 12.165525061 Reorder the terms: 2 + w = 12.165525061 Solving 2 + w = 12.165525061 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 = 12.165525061 + -2 Combine like terms: 2 + -2 = 0 0 + w = 12.165525061 + -2 w = 12.165525061 + -2 Combine like terms: 12.165525061 + -2 = 10.165525061 w = 10.165525061 Simplifying w = 10.165525061

Subproblem 2

w + 2 = -12.165525061 Simplifying w + 2 = -12.165525061 Reorder the terms: 2 + w = -12.165525061 Solving 2 + w = -12.165525061 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 = -12.165525061 + -2 Combine like terms: 2 + -2 = 0 0 + w = -12.165525061 + -2 w = -12.165525061 + -2 Combine like terms: -12.165525061 + -2 = -14.165525061 w = -14.165525061 Simplifying w = -14.165525061

Solution

The solution to the problem is based on the solutions from the subproblems. w = {10.165525061, -14.165525061}

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