0=3w+3w^2-629

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Solution for 0=3w+3w^2-629 equation:


Simplifying
0 = 3w + 3w2 + -629

Reorder the terms:
0 = -629 + 3w + 3w2

Solving
0 = -629 + 3w + 3w2

Solving for variable 'w'.

Combine like terms: 0 + 629 = 629
629 + -3w + -3w2 = -629 + 3w + 3w2 + 629 + -3w + -3w2

Reorder the terms:
629 + -3w + -3w2 = -629 + 629 + 3w + -3w + 3w2 + -3w2

Combine like terms: -629 + 629 = 0
629 + -3w + -3w2 = 0 + 3w + -3w + 3w2 + -3w2
629 + -3w + -3w2 = 3w + -3w + 3w2 + -3w2

Combine like terms: 3w + -3w = 0
629 + -3w + -3w2 = 0 + 3w2 + -3w2
629 + -3w + -3w2 = 3w2 + -3w2

Combine like terms: 3w2 + -3w2 = 0
629 + -3w + -3w2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-209.6666667 + w + w2 = 0

Move the constant term to the right:

Add '209.6666667' to each side of the equation.
-209.6666667 + w + 209.6666667 + w2 = 0 + 209.6666667

Reorder the terms:
-209.6666667 + 209.6666667 + w + w2 = 0 + 209.6666667

Combine like terms: -209.6666667 + 209.6666667 = 0.0000000
0.0000000 + w + w2 = 0 + 209.6666667
w + w2 = 0 + 209.6666667

Combine like terms: 0 + 209.6666667 = 209.6666667
w + w2 = 209.6666667

The w term is w.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + w2 = 209.6666667 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + w2 = 209.6666667 + 0.25

Combine like terms: 209.6666667 + 0.25 = 209.9166667
1.25 + w2 = 209.9166667

Factor a perfect square on the left side:
(w + 0.5)(w + 0.5) = 209.9166667

Calculate the square root of the right side: 14.488501189

Break this problem into two subproblems by setting 
(w + 0.5) equal to 14.488501189 and -14.488501189.

Subproblem 1

w + 0.5 = 14.488501189 Simplifying w + 0.5 = 14.488501189 Reorder the terms: 0.5 + w = 14.488501189 Solving 0.5 + w = 14.488501189 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + w = 14.488501189 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = 14.488501189 + -0.5 w = 14.488501189 + -0.5 Combine like terms: 14.488501189 + -0.5 = 13.988501189 w = 13.988501189 Simplifying w = 13.988501189

Subproblem 2

w + 0.5 = -14.488501189 Simplifying w + 0.5 = -14.488501189 Reorder the terms: 0.5 + w = -14.488501189 Solving 0.5 + w = -14.488501189 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + w = -14.488501189 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = -14.488501189 + -0.5 w = -14.488501189 + -0.5 Combine like terms: -14.488501189 + -0.5 = -14.988501189 w = -14.988501189 Simplifying w = -14.988501189

Solution

The solution to the problem is based on the solutions from the subproblems. w = {13.988501189, -14.988501189}

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