4w^2-5w=50

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Solution for 4w^2-5w=50 equation:


Simplifying
4w2 + -5w = 50

Reorder the terms:
-5w + 4w2 = 50

Solving
-5w + 4w2 = 50

Solving for variable 'w'.

Reorder the terms:
-50 + -5w + 4w2 = 50 + -50

Combine like terms: 50 + -50 = 0
-50 + -5w + 4w2 = 0

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

Divide each side by '4'.
-12.5 + -1.25w + w2 = 0

Move the constant term to the right:

Add '12.5' to each side of the equation.
-12.5 + -1.25w + 12.5 + w2 = 0 + 12.5

Reorder the terms:
-12.5 + 12.5 + -1.25w + w2 = 0 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + -1.25w + w2 = 0 + 12.5
-1.25w + w2 = 0 + 12.5

Combine like terms: 0 + 12.5 = 12.5
-1.25w + w2 = 12.5

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 = 12.5 + 0.390625

Reorder the terms:
0.390625 + -1.25w + w2 = 12.5 + 0.390625

Combine like terms: 12.5 + 0.390625 = 12.890625
0.390625 + -1.25w + w2 = 12.890625

Factor a perfect square on the left side:
(w + -0.625)(w + -0.625) = 12.890625

Calculate the square root of the right side: 3.590351654

Break this problem into two subproblems by setting 
(w + -0.625) equal to 3.590351654 and -3.590351654.

Subproblem 1

w + -0.625 = 3.590351654 Simplifying w + -0.625 = 3.590351654 Reorder the terms: -0.625 + w = 3.590351654 Solving -0.625 + w = 3.590351654 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 = 3.590351654 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + w = 3.590351654 + 0.625 w = 3.590351654 + 0.625 Combine like terms: 3.590351654 + 0.625 = 4.215351654 w = 4.215351654 Simplifying w = 4.215351654

Subproblem 2

w + -0.625 = -3.590351654 Simplifying w + -0.625 = -3.590351654 Reorder the terms: -0.625 + w = -3.590351654 Solving -0.625 + w = -3.590351654 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 = -3.590351654 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + w = -3.590351654 + 0.625 w = -3.590351654 + 0.625 Combine like terms: -3.590351654 + 0.625 = -2.965351654 w = -2.965351654 Simplifying w = -2.965351654

Solution

The solution to the problem is based on the solutions from the subproblems. w = {4.215351654, -2.965351654}

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