2w^2-2w=35

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Solution for 2w^2-2w=35 equation:


Simplifying
2w2 + -2w = 35

Reorder the terms:
-2w + 2w2 = 35

Solving
-2w + 2w2 = 35

Solving for variable 'w'.

Reorder the terms:
-35 + -2w + 2w2 = 35 + -35

Combine like terms: 35 + -35 = 0
-35 + -2w + 2w2 = 0

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

Divide each side by '2'.
-17.5 + -1w + w2 = 0

Move the constant term to the right:

Add '17.5' to each side of the equation.
-17.5 + -1w + 17.5 + w2 = 0 + 17.5

Reorder the terms:
-17.5 + 17.5 + -1w + w2 = 0 + 17.5

Combine like terms: -17.5 + 17.5 = 0.0
0.0 + -1w + w2 = 0 + 17.5
-1w + w2 = 0 + 17.5

Combine like terms: 0 + 17.5 = 17.5
-1w + w2 = 17.5

The w term is -1w.  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.
-1w + 0.25 + w2 = 17.5 + 0.25

Reorder the terms:
0.25 + -1w + w2 = 17.5 + 0.25

Combine like terms: 17.5 + 0.25 = 17.75
0.25 + -1w + w2 = 17.75

Factor a perfect square on the left side:
(w + -0.5)(w + -0.5) = 17.75

Calculate the square root of the right side: 4.213074887

Break this problem into two subproblems by setting 
(w + -0.5) equal to 4.213074887 and -4.213074887.

Subproblem 1

w + -0.5 = 4.213074887 Simplifying w + -0.5 = 4.213074887 Reorder the terms: -0.5 + w = 4.213074887 Solving -0.5 + w = 4.213074887 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 = 4.213074887 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w = 4.213074887 + 0.5 w = 4.213074887 + 0.5 Combine like terms: 4.213074887 + 0.5 = 4.713074887 w = 4.713074887 Simplifying w = 4.713074887

Subproblem 2

w + -0.5 = -4.213074887 Simplifying w + -0.5 = -4.213074887 Reorder the terms: -0.5 + w = -4.213074887 Solving -0.5 + w = -4.213074887 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 = -4.213074887 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + w = -4.213074887 + 0.5 w = -4.213074887 + 0.5 Combine like terms: -4.213074887 + 0.5 = -3.713074887 w = -3.713074887 Simplifying w = -3.713074887

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.713074887, -3.713074887}

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