2w^2+3w-196=0

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Solution for 2w^2+3w-196=0 equation:


Simplifying
2w2 + 3w + -196 = 0

Reorder the terms:
-196 + 3w + 2w2 = 0

Solving
-196 + 3w + 2w2 = 0

Solving for variable 'w'.

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

Divide each side by '2'.
-98 + 1.5w + w2 = 0

Move the constant term to the right:

Add '98' to each side of the equation.
-98 + 1.5w + 98 + w2 = 0 + 98

Reorder the terms:
-98 + 98 + 1.5w + w2 = 0 + 98

Combine like terms: -98 + 98 = 0
0 + 1.5w + w2 = 0 + 98
1.5w + w2 = 0 + 98

Combine like terms: 0 + 98 = 98
1.5w + w2 = 98

The w term is 1.5w.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5w + 0.5625 + w2 = 98 + 0.5625

Reorder the terms:
0.5625 + 1.5w + w2 = 98 + 0.5625

Combine like terms: 98 + 0.5625 = 98.5625
0.5625 + 1.5w + w2 = 98.5625

Factor a perfect square on the left side:
(w + 0.75)(w + 0.75) = 98.5625

Calculate the square root of the right side: 9.927864826

Break this problem into two subproblems by setting 
(w + 0.75) equal to 9.927864826 and -9.927864826.

Subproblem 1

w + 0.75 = 9.927864826 Simplifying w + 0.75 = 9.927864826 Reorder the terms: 0.75 + w = 9.927864826 Solving 0.75 + w = 9.927864826 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + w = 9.927864826 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = 9.927864826 + -0.75 w = 9.927864826 + -0.75 Combine like terms: 9.927864826 + -0.75 = 9.177864826 w = 9.177864826 Simplifying w = 9.177864826

Subproblem 2

w + 0.75 = -9.927864826 Simplifying w + 0.75 = -9.927864826 Reorder the terms: 0.75 + w = -9.927864826 Solving 0.75 + w = -9.927864826 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + w = -9.927864826 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = -9.927864826 + -0.75 w = -9.927864826 + -0.75 Combine like terms: -9.927864826 + -0.75 = -10.677864826 w = -10.677864826 Simplifying w = -10.677864826

Solution

The solution to the problem is based on the solutions from the subproblems. w = {9.177864826, -10.677864826}

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