4e^2-20e+4e^2=4

Solution for 4e^2-20e+4e^2=4 equation:

Simplifying
4e2 + -20e + 4e2 = 4

Reorder the terms:
-20e + 4e2 + 4e2 = 4

Combine like terms: 4e2 + 4e2 = 8e2
-20e + 8e2 = 4

Solving
-20e + 8e2 = 4

Solving for variable 'e'.

Reorder the terms:
-4 + -20e + 8e2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -20e + 8e2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -5e + 2e2) = 0

Ignore the factor 4.
Subproblem 1
Set the factor '(-1 + -5e + 2e2)' equal to zero and attempt to solve:

Simplifying
-1 + -5e + 2e2 = 0

Solving
-1 + -5e + 2e2 = 0

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

Divide each side by '2'.
-0.5 + -2.5e + e2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -2.5e + 0.5 + e2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -2.5e + e2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -2.5e + e2 = 0 + 0.5
-2.5e + e2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-2.5e + e2 = 0.5

The e term is -2.5e.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5e + 1.5625 + e2 = 0.5 + 1.5625

Reorder the terms:
1.5625 + -2.5e + e2 = 0.5 + 1.5625

Combine like terms: 0.5 + 1.5625 = 2.0625
1.5625 + -2.5e + e2 = 2.0625

Factor a perfect square on the left side:
(e + -1.25)(e + -1.25) = 2.0625

Calculate the square root of the right side: 1.436140662

Break this problem into two subproblems by setting 
(e + -1.25) equal to 1.436140662 and -1.436140662.

Subproblem 1
e + -1.25 = 1.436140662

Simplifying
e + -1.25 = 1.436140662

Reorder the terms:
-1.25 + e = 1.436140662

Solving
-1.25 + e = 1.436140662

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '1.25' to each side of the equation.
-1.25 + 1.25 + e = 1.436140662 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + e = 1.436140662 + 1.25
e = 1.436140662 + 1.25

Combine like terms: 1.436140662 + 1.25 = 2.686140662
e = 2.686140662

Simplifying
e = 2.686140662

Subproblem 2
e + -1.25 = -1.436140662

Simplifying
e + -1.25 = -1.436140662

Reorder the terms:
-1.25 + e = -1.436140662

Solving
-1.25 + e = -1.436140662

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '1.25' to each side of the equation.
-1.25 + 1.25 + e = -1.436140662 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + e = -1.436140662 + 1.25
e = -1.436140662 + 1.25

Combine like terms: -1.436140662 + 1.25 = -0.186140662
e = -0.186140662

Simplifying
e = -0.186140662

Solution
The solution to the problem is based on the solutions
from the subproblems.
e = {2.686140662, -0.186140662}
Solution
e = {2.686140662, -0.186140662}