12w^2+19w=4

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Solution for 12w^2+19w=4 equation:


Simplifying
12w2 + 19w = 4

Reorder the terms:
19w + 12w2 = 4

Solving
19w + 12w2 = 4

Solving for variable 'w'.

Reorder the terms:
-4 + 19w + 12w2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + 19w + 12w2 = 0

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

Divide each side by '12'.
-0.3333333333 + 1.583333333w + w2 = 0

Move the constant term to the right:

Add '0.3333333333' to each side of the equation.
-0.3333333333 + 1.583333333w + 0.3333333333 + w2 = 0 + 0.3333333333

Reorder the terms:
-0.3333333333 + 0.3333333333 + 1.583333333w + w2 = 0 + 0.3333333333

Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000
0.0000000000 + 1.583333333w + w2 = 0 + 0.3333333333
1.583333333w + w2 = 0 + 0.3333333333

Combine like terms: 0 + 0.3333333333 = 0.3333333333
1.583333333w + w2 = 0.3333333333

The w term is 1.583333333w.  Take half its coefficient (0.7916666665).
Square it (0.6267361108) and add it to both sides.

Add '0.6267361108' to each side of the equation.
1.583333333w + 0.6267361108 + w2 = 0.3333333333 + 0.6267361108

Reorder the terms:
0.6267361108 + 1.583333333w + w2 = 0.3333333333 + 0.6267361108

Combine like terms: 0.3333333333 + 0.6267361108 = 0.9600694441
0.6267361108 + 1.583333333w + w2 = 0.9600694441

Factor a perfect square on the left side:
(w + 0.7916666665)(w + 0.7916666665) = 0.9600694441

Calculate the square root of the right side: 0.979831335

Break this problem into two subproblems by setting 
(w + 0.7916666665) equal to 0.979831335 and -0.979831335.

Subproblem 1

w + 0.7916666665 = 0.979831335 Simplifying w + 0.7916666665 = 0.979831335 Reorder the terms: 0.7916666665 + w = 0.979831335 Solving 0.7916666665 + w = 0.979831335 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.7916666665' to each side of the equation. 0.7916666665 + -0.7916666665 + w = 0.979831335 + -0.7916666665 Combine like terms: 0.7916666665 + -0.7916666665 = 0.0000000000 0.0000000000 + w = 0.979831335 + -0.7916666665 w = 0.979831335 + -0.7916666665 Combine like terms: 0.979831335 + -0.7916666665 = 0.1881646685 w = 0.1881646685 Simplifying w = 0.1881646685

Subproblem 2

w + 0.7916666665 = -0.979831335 Simplifying w + 0.7916666665 = -0.979831335 Reorder the terms: 0.7916666665 + w = -0.979831335 Solving 0.7916666665 + w = -0.979831335 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.7916666665' to each side of the equation. 0.7916666665 + -0.7916666665 + w = -0.979831335 + -0.7916666665 Combine like terms: 0.7916666665 + -0.7916666665 = 0.0000000000 0.0000000000 + w = -0.979831335 + -0.7916666665 w = -0.979831335 + -0.7916666665 Combine like terms: -0.979831335 + -0.7916666665 = -1.7714980015 w = -1.7714980015 Simplifying w = -1.7714980015

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.1881646685, -1.7714980015}

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