3w-5-19w^2+17=

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Solution for 3w-5-19w^2+17= equation:


Simplifying
3w + -5 + -19w2 + 17 = 0

Reorder the terms:
-5 + 17 + 3w + -19w2 = 0

Combine like terms: -5 + 17 = 12
12 + 3w + -19w2 = 0

Solving
12 + 3w + -19w2 = 0

Solving for variable 'w'.

Begin completing the square.  Divide all terms by
-19 the coefficient of the squared term: 

Divide each side by '-19'.
-0.6315789474 + -0.1578947368w + w2 = 0

Move the constant term to the right:

Add '0.6315789474' to each side of the equation.
-0.6315789474 + -0.1578947368w + 0.6315789474 + w2 = 0 + 0.6315789474

Reorder the terms:
-0.6315789474 + 0.6315789474 + -0.1578947368w + w2 = 0 + 0.6315789474

Combine like terms: -0.6315789474 + 0.6315789474 = 0.0000000000
0.0000000000 + -0.1578947368w + w2 = 0 + 0.6315789474
-0.1578947368w + w2 = 0 + 0.6315789474

Combine like terms: 0 + 0.6315789474 = 0.6315789474
-0.1578947368w + w2 = 0.6315789474

The w term is -0.1578947368w.  Take half its coefficient (-0.0789473684).
Square it (0.006232686977) and add it to both sides.

Add '0.006232686977' to each side of the equation.
-0.1578947368w + 0.006232686977 + w2 = 0.6315789474 + 0.006232686977

Reorder the terms:
0.006232686977 + -0.1578947368w + w2 = 0.6315789474 + 0.006232686977

Combine like terms: 0.6315789474 + 0.006232686977 = 0.637811634377
0.006232686977 + -0.1578947368w + w2 = 0.637811634377

Factor a perfect square on the left side:
(w + -0.0789473684)(w + -0.0789473684) = 0.637811634377

Calculate the square root of the right side: 0.7986311

Break this problem into two subproblems by setting 
(w + -0.0789473684) equal to 0.7986311 and -0.7986311.

Subproblem 1

w + -0.0789473684 = 0.7986311 Simplifying w + -0.0789473684 = 0.7986311 Reorder the terms: -0.0789473684 + w = 0.7986311 Solving -0.0789473684 + w = 0.7986311 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.0789473684' to each side of the equation. -0.0789473684 + 0.0789473684 + w = 0.7986311 + 0.0789473684 Combine like terms: -0.0789473684 + 0.0789473684 = 0.0000000000 0.0000000000 + w = 0.7986311 + 0.0789473684 w = 0.7986311 + 0.0789473684 Combine like terms: 0.7986311 + 0.0789473684 = 0.8775784684 w = 0.8775784684 Simplifying w = 0.8775784684

Subproblem 2

w + -0.0789473684 = -0.7986311 Simplifying w + -0.0789473684 = -0.7986311 Reorder the terms: -0.0789473684 + w = -0.7986311 Solving -0.0789473684 + w = -0.7986311 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '0.0789473684' to each side of the equation. -0.0789473684 + 0.0789473684 + w = -0.7986311 + 0.0789473684 Combine like terms: -0.0789473684 + 0.0789473684 = 0.0000000000 0.0000000000 + w = -0.7986311 + 0.0789473684 w = -0.7986311 + 0.0789473684 Combine like terms: -0.7986311 + 0.0789473684 = -0.7196837316 w = -0.7196837316 Simplifying w = -0.7196837316

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.8775784684, -0.7196837316}

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