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 = 14.165525061 w = 14.165525061 Simplifying w = 14.165525061

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 = -10.165525061 w = -10.165525061 Simplifying w = -10.165525061

Solution

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

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