3w^2+w-68=0

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Solution for 3w^2+w-68=0 equation:


Simplifying
3w2 + w + -68 = 0

Reorder the terms:
-68 + w + 3w2 = 0

Solving
-68 + w + 3w2 = 0

Solving for variable 'w'.

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

Divide each side by '3'.
-22.66666667 + 0.3333333333w + w2 = 0

Move the constant term to the right:

Add '22.66666667' to each side of the equation.
-22.66666667 + 0.3333333333w + 22.66666667 + w2 = 0 + 22.66666667

Reorder the terms:
-22.66666667 + 22.66666667 + 0.3333333333w + w2 = 0 + 22.66666667

Combine like terms: -22.66666667 + 22.66666667 = 0.00000000
0.00000000 + 0.3333333333w + w2 = 0 + 22.66666667
0.3333333333w + w2 = 0 + 22.66666667

Combine like terms: 0 + 22.66666667 = 22.66666667
0.3333333333w + w2 = 22.66666667

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.
0.3333333333w + 0.25 + w2 = 22.66666667 + 0.25

Reorder the terms:
0.25 + 0.3333333333w + w2 = 22.66666667 + 0.25

Combine like terms: 22.66666667 + 0.25 = 22.91666667
0.25 + 0.3333333333w + w2 = 22.91666667

Factor a perfect square on the left side:
(w + 0.5)(w + 0.5) = 22.91666667

Calculate the square root of the right side: 4.787135539

Break this problem into two subproblems by setting 
(w + 0.5) equal to 4.787135539 and -4.787135539.

Subproblem 1

w + 0.5 = 4.787135539 Simplifying w + 0.5 = 4.787135539 Reorder the terms: 0.5 + w = 4.787135539 Solving 0.5 + w = 4.787135539 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 = 4.787135539 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = 4.787135539 + -0.5 w = 4.787135539 + -0.5 Combine like terms: 4.787135539 + -0.5 = 4.287135539 w = 4.287135539 Simplifying w = 4.287135539

Subproblem 2

w + 0.5 = -4.787135539 Simplifying w + 0.5 = -4.787135539 Reorder the terms: 0.5 + w = -4.787135539 Solving 0.5 + w = -4.787135539 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 = -4.787135539 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = -4.787135539 + -0.5 w = -4.787135539 + -0.5 Combine like terms: -4.787135539 + -0.5 = -5.287135539 w = -5.287135539 Simplifying w = -5.287135539

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.287135539, -5.287135539}

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