63=w(2w-4)

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Solution for 63=w(2w-4) equation:


Simplifying
63 = w(2w + -4)

Reorder the terms:
63 = w(-4 + 2w)
63 = (-4 * w + 2w * w)
63 = (-4w + 2w2)

Solving
63 = -4w + 2w2

Solving for variable 'w'.

Reorder the terms:
63 + 4w + -2w2 = -4w + 4w + 2w2 + -2w2

Combine like terms: -4w + 4w = 0
63 + 4w + -2w2 = 0 + 2w2 + -2w2
63 + 4w + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
63 + 4w + -2w2 = 0

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

Divide each side by '-2'.
-31.5 + -2w + w2 = 0

Move the constant term to the right:

Add '31.5' to each side of the equation.
-31.5 + -2w + 31.5 + w2 = 0 + 31.5

Reorder the terms:
-31.5 + 31.5 + -2w + w2 = 0 + 31.5

Combine like terms: -31.5 + 31.5 = 0.0
0.0 + -2w + w2 = 0 + 31.5
-2w + w2 = 0 + 31.5

Combine like terms: 0 + 31.5 = 31.5
-2w + w2 = 31.5

The w term is -2w.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2w + 1 + w2 = 31.5 + 1

Reorder the terms:
1 + -2w + w2 = 31.5 + 1

Combine like terms: 31.5 + 1 = 32.5
1 + -2w + w2 = 32.5

Factor a perfect square on the left side:
(w + -1)(w + -1) = 32.5

Calculate the square root of the right side: 5.700877125

Break this problem into two subproblems by setting 
(w + -1) equal to 5.700877125 and -5.700877125.

Subproblem 1

w + -1 = 5.700877125 Simplifying w + -1 = 5.700877125 Reorder the terms: -1 + w = 5.700877125 Solving -1 + w = 5.700877125 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + w = 5.700877125 + 1 Combine like terms: -1 + 1 = 0 0 + w = 5.700877125 + 1 w = 5.700877125 + 1 Combine like terms: 5.700877125 + 1 = 6.700877125 w = 6.700877125 Simplifying w = 6.700877125

Subproblem 2

w + -1 = -5.700877125 Simplifying w + -1 = -5.700877125 Reorder the terms: -1 + w = -5.700877125 Solving -1 + w = -5.700877125 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + w = -5.700877125 + 1 Combine like terms: -1 + 1 = 0 0 + w = -5.700877125 + 1 w = -5.700877125 + 1 Combine like terms: -5.700877125 + 1 = -4.700877125 w = -4.700877125 Simplifying w = -4.700877125

Solution

The solution to the problem is based on the solutions from the subproblems. w = {6.700877125, -4.700877125}

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