18W^2+33W+13=

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Solution for 18W^2+33W+13= equation:


Simplifying
18W2 + 33W + 13 = 0

Reorder the terms:
13 + 33W + 18W2 = 0

Solving
13 + 33W + 18W2 = 0

Solving for variable 'W'.

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

Divide each side by '18'.
0.7222222222 + 1.833333333W + W2 = 0

Move the constant term to the right:

Add '-0.7222222222' to each side of the equation.
0.7222222222 + 1.833333333W + -0.7222222222 + W2 = 0 + -0.7222222222

Reorder the terms:
0.7222222222 + -0.7222222222 + 1.833333333W + W2 = 0 + -0.7222222222

Combine like terms: 0.7222222222 + -0.7222222222 = 0.0000000000
0.0000000000 + 1.833333333W + W2 = 0 + -0.7222222222
1.833333333W + W2 = 0 + -0.7222222222

Combine like terms: 0 + -0.7222222222 = -0.7222222222
1.833333333W + W2 = -0.7222222222

The W term is 1.833333333W.  Take half its coefficient (0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
1.833333333W + 0.8402777775 + W2 = -0.7222222222 + 0.8402777775

Reorder the terms:
0.8402777775 + 1.833333333W + W2 = -0.7222222222 + 0.8402777775

Combine like terms: -0.7222222222 + 0.8402777775 = 0.1180555553
0.8402777775 + 1.833333333W + W2 = 0.1180555553

Factor a perfect square on the left side:
(W + 0.9166666665)(W + 0.9166666665) = 0.1180555553

Calculate the square root of the right side: 0.343592135

Break this problem into two subproblems by setting 
(W + 0.9166666665) equal to 0.343592135 and -0.343592135.

Subproblem 1

W + 0.9166666665 = 0.343592135 Simplifying W + 0.9166666665 = 0.343592135 Reorder the terms: 0.9166666665 + W = 0.343592135 Solving 0.9166666665 + W = 0.343592135 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + W = 0.343592135 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + W = 0.343592135 + -0.9166666665 W = 0.343592135 + -0.9166666665 Combine like terms: 0.343592135 + -0.9166666665 = -0.5730745315 W = -0.5730745315 Simplifying W = -0.5730745315

Subproblem 2

W + 0.9166666665 = -0.343592135 Simplifying W + 0.9166666665 = -0.343592135 Reorder the terms: 0.9166666665 + W = -0.343592135 Solving 0.9166666665 + W = -0.343592135 Solving for variable 'W'. Move all terms containing W to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + W = -0.343592135 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + W = -0.343592135 + -0.9166666665 W = -0.343592135 + -0.9166666665 Combine like terms: -0.343592135 + -0.9166666665 = -1.2602588015 W = -1.2602588015 Simplifying W = -1.2602588015

Solution

The solution to the problem is based on the solutions from the subproblems. W = {-0.5730745315, -1.2602588015}

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