4w^2+40w+1=0

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Solution for 4w^2+40w+1=0 equation:


Simplifying
4w2 + 40w + 1 = 0

Reorder the terms:
1 + 40w + 4w2 = 0

Solving
1 + 40w + 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'.
0.25 + 10w + w2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 10w + -0.25 + w2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 10w + w2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 10w + w2 = 0 + -0.25
10w + w2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
10w + w2 = -0.25

The w term is 10w.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10w + 25 + w2 = -0.25 + 25

Reorder the terms:
25 + 10w + w2 = -0.25 + 25

Combine like terms: -0.25 + 25 = 24.75
25 + 10w + w2 = 24.75

Factor a perfect square on the left side:
(w + 5)(w + 5) = 24.75

Calculate the square root of the right side: 4.974937186

Break this problem into two subproblems by setting 
(w + 5) equal to 4.974937186 and -4.974937186.

Subproblem 1

w + 5 = 4.974937186 Simplifying w + 5 = 4.974937186 Reorder the terms: 5 + w = 4.974937186 Solving 5 + w = 4.974937186 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + w = 4.974937186 + -5 Combine like terms: 5 + -5 = 0 0 + w = 4.974937186 + -5 w = 4.974937186 + -5 Combine like terms: 4.974937186 + -5 = -0.025062814 w = -0.025062814 Simplifying w = -0.025062814

Subproblem 2

w + 5 = -4.974937186 Simplifying w + 5 = -4.974937186 Reorder the terms: 5 + w = -4.974937186 Solving 5 + w = -4.974937186 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + w = -4.974937186 + -5 Combine like terms: 5 + -5 = 0 0 + w = -4.974937186 + -5 w = -4.974937186 + -5 Combine like terms: -4.974937186 + -5 = -9.974937186 w = -9.974937186 Simplifying w = -9.974937186

Solution

The solution to the problem is based on the solutions from the subproblems. w = {-0.025062814, -9.974937186}

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