2w^2+13w+16-w^2+12w-36=0

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Solution for 2w^2+13w+16-w^2+12w-36=0 equation:


Simplifying
2w2 + 13w + 16 + -1w2 + 12w + -36 = 0

Reorder the terms:
16 + -36 + 13w + 12w + 2w2 + -1w2 = 0

Combine like terms: 16 + -36 = -20
-20 + 13w + 12w + 2w2 + -1w2 = 0

Combine like terms: 13w + 12w = 25w
-20 + 25w + 2w2 + -1w2 = 0

Combine like terms: 2w2 + -1w2 = 1w2
-20 + 25w + 1w2 = 0

Solving
-20 + 25w + 1w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + 25w + 20 + w2 = 0 + 20

Reorder the terms:
-20 + 20 + 25w + w2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 25w + w2 = 0 + 20
25w + w2 = 0 + 20

Combine like terms: 0 + 20 = 20
25w + w2 = 20

The w term is 25w.  Take half its coefficient (12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
25w + 156.25 + w2 = 20 + 156.25

Reorder the terms:
156.25 + 25w + w2 = 20 + 156.25

Combine like terms: 20 + 156.25 = 176.25
156.25 + 25w + w2 = 176.25

Factor a perfect square on the left side:
(w + 12.5)(w + 12.5) = 176.25

Calculate the square root of the right side: 13.275918047

Break this problem into two subproblems by setting 
(w + 12.5) equal to 13.275918047 and -13.275918047.

Subproblem 1

w + 12.5 = 13.275918047 Simplifying w + 12.5 = 13.275918047 Reorder the terms: 12.5 + w = 13.275918047 Solving 12.5 + w = 13.275918047 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + w = 13.275918047 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + w = 13.275918047 + -12.5 w = 13.275918047 + -12.5 Combine like terms: 13.275918047 + -12.5 = 0.775918047 w = 0.775918047 Simplifying w = 0.775918047

Subproblem 2

w + 12.5 = -13.275918047 Simplifying w + 12.5 = -13.275918047 Reorder the terms: 12.5 + w = -13.275918047 Solving 12.5 + w = -13.275918047 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + w = -13.275918047 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + w = -13.275918047 + -12.5 w = -13.275918047 + -12.5 Combine like terms: -13.275918047 + -12.5 = -25.775918047 w = -25.775918047 Simplifying w = -25.775918047

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.775918047, -25.775918047}

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