144=(2w+3)*w

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Solution for 144=(2w+3)*w equation:


Simplifying
144 = (2w + 3) * w

Reorder the terms:
144 = (3 + 2w) * w

Reorder the terms for easier multiplication:
144 = w(3 + 2w)
144 = (3 * w + 2w * w)
144 = (3w + 2w2)

Solving
144 = 3w + 2w2

Solving for variable 'w'.

Reorder the terms:
144 + -3w + -2w2 = 3w + -3w + 2w2 + -2w2

Combine like terms: 3w + -3w = 0
144 + -3w + -2w2 = 0 + 2w2 + -2w2
144 + -3w + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
144 + -3w + -2w2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-72 + 1.5w + w2 = 0

Move the constant term to the right:

Add '72' to each side of the equation.
-72 + 1.5w + 72 + w2 = 0 + 72

Reorder the terms:
-72 + 72 + 1.5w + w2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 1.5w + w2 = 0 + 72
1.5w + w2 = 0 + 72

Combine like terms: 0 + 72 = 72
1.5w + w2 = 72

The w term is 1.5w.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5w + 0.5625 + w2 = 72 + 0.5625

Reorder the terms:
0.5625 + 1.5w + w2 = 72 + 0.5625

Combine like terms: 72 + 0.5625 = 72.5625
0.5625 + 1.5w + w2 = 72.5625

Factor a perfect square on the left side:
(w + 0.75)(w + 0.75) = 72.5625

Calculate the square root of the right side: 8.518362519

Break this problem into two subproblems by setting 
(w + 0.75) equal to 8.518362519 and -8.518362519.

Subproblem 1

w + 0.75 = 8.518362519 Simplifying w + 0.75 = 8.518362519 Reorder the terms: 0.75 + w = 8.518362519 Solving 0.75 + w = 8.518362519 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + w = 8.518362519 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = 8.518362519 + -0.75 w = 8.518362519 + -0.75 Combine like terms: 8.518362519 + -0.75 = 7.768362519 w = 7.768362519 Simplifying w = 7.768362519

Subproblem 2

w + 0.75 = -8.518362519 Simplifying w + 0.75 = -8.518362519 Reorder the terms: 0.75 + w = -8.518362519 Solving 0.75 + w = -8.518362519 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + w = -8.518362519 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = -8.518362519 + -0.75 w = -8.518362519 + -0.75 Combine like terms: -8.518362519 + -0.75 = -9.268362519 w = -9.268362519 Simplifying w = -9.268362519

Solution

The solution to the problem is based on the solutions from the subproblems. w = {7.768362519, -9.268362519}

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