2w^2+3w-64=0

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Solution for 2w^2+3w-64=0 equation:


Simplifying
2w2 + 3w + -64 = 0

Reorder the terms:
-64 + 3w + 2w2 = 0

Solving
-64 + 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'.
-32 + 1.5w + w2 = 0

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + 1.5w + 32 + w2 = 0 + 32

Reorder the terms:
-32 + 32 + 1.5w + w2 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + 1.5w + w2 = 0 + 32
1.5w + w2 = 0 + 32

Combine like terms: 0 + 32 = 32
1.5w + w2 = 32

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 = 32 + 0.5625

Reorder the terms:
0.5625 + 1.5w + w2 = 32 + 0.5625

Combine like terms: 32 + 0.5625 = 32.5625
0.5625 + 1.5w + w2 = 32.5625

Factor a perfect square on the left side:
(w + 0.75)(w + 0.75) = 32.5625

Calculate the square root of the right side: 5.706356105

Break this problem into two subproblems by setting 
(w + 0.75) equal to 5.706356105 and -5.706356105.

Subproblem 1

w + 0.75 = 5.706356105 Simplifying w + 0.75 = 5.706356105 Reorder the terms: 0.75 + w = 5.706356105 Solving 0.75 + w = 5.706356105 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 = 5.706356105 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = 5.706356105 + -0.75 w = 5.706356105 + -0.75 Combine like terms: 5.706356105 + -0.75 = 4.956356105 w = 4.956356105 Simplifying w = 4.956356105

Subproblem 2

w + 0.75 = -5.706356105 Simplifying w + 0.75 = -5.706356105 Reorder the terms: 0.75 + w = -5.706356105 Solving 0.75 + w = -5.706356105 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 = -5.706356105 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + w = -5.706356105 + -0.75 w = -5.706356105 + -0.75 Combine like terms: -5.706356105 + -0.75 = -6.456356105 w = -6.456356105 Simplifying w = -6.456356105

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.956356105, -6.456356105}

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