4w^2+5w-3=0

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Solution for 4w^2+5w-3=0 equation:


Simplifying
4w2 + 5w + -3 = 0

Reorder the terms:
-3 + 5w + 4w2 = 0

Solving
-3 + 5w + 4w2 = 0

Solving for variable 'w'.

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

Divide each side by '4'.
-0.75 + 1.25w + w2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + 1.25w + 0.75 + w2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + 1.25w + w2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + 1.25w + w2 = 0 + 0.75
1.25w + w2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
1.25w + w2 = 0.75

The w term is 1.25w.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25w + 0.390625 + w2 = 0.75 + 0.390625

Reorder the terms:
0.390625 + 1.25w + w2 = 0.75 + 0.390625

Combine like terms: 0.75 + 0.390625 = 1.140625
0.390625 + 1.25w + w2 = 1.140625

Factor a perfect square on the left side:
(w + 0.625)(w + 0.625) = 1.140625

Calculate the square root of the right side: 1.068000468

Break this problem into two subproblems by setting 
(w + 0.625) equal to 1.068000468 and -1.068000468.

Subproblem 1

w + 0.625 = 1.068000468 Simplifying w + 0.625 = 1.068000468 Reorder the terms: 0.625 + w = 1.068000468 Solving 0.625 + w = 1.068000468 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + w = 1.068000468 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + w = 1.068000468 + -0.625 w = 1.068000468 + -0.625 Combine like terms: 1.068000468 + -0.625 = 0.443000468 w = 0.443000468 Simplifying w = 0.443000468

Subproblem 2

w + 0.625 = -1.068000468 Simplifying w + 0.625 = -1.068000468 Reorder the terms: 0.625 + w = -1.068000468 Solving 0.625 + w = -1.068000468 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + w = -1.068000468 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + w = -1.068000468 + -0.625 w = -1.068000468 + -0.625 Combine like terms: -1.068000468 + -0.625 = -1.693000468 w = -1.693000468 Simplifying w = -1.693000468

Solution

The solution to the problem is based on the solutions from the subproblems. w = {0.443000468, -1.693000468}

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