-2u=-(-2u)(-2u)

Solution for -2u=-(-2u)(-2u) equation:

Simplifying
-2u = -1(-2u)(-2u)

Remove parenthesis around (-2u)
-2u = -1 * -2u(-2u)

Remove parenthesis around (-2u)
-2u = -1 * -2u * -2u

Reorder the terms for easier multiplication:
-2u = -1 * -2 * -2u * u

Multiply -1 * -2
-2u = 2 * -2u * u

Multiply 2 * -2
-2u = -4u * u

Multiply u * u
-2u = -4u2

Solving
-2u = -4u2

Solving for variable 'u'.

Combine like terms: -4u2 + 4u2 = 0
-2u + 4u2 = 0

Factor out the Greatest Common Factor (GCF), '2u'.
2u(-1 + 2u) = 0

Ignore the factor 2.
Subproblem 1
Set the factor 'u' equal to zero and attempt to solve:

Simplifying
u = 0

Solving
u = 0

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

Simplifying
u = 0
Subproblem 2
Set the factor '(-1 + 2u)' equal to zero and attempt to solve:

Simplifying
-1 + 2u = 0

Solving
-1 + 2u = 0

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

Add '1' to each side of the equation.
-1 + 1 + 2u = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2u = 0 + 1
2u = 0 + 1

Combine like terms: 0 + 1 = 1
2u = 1

Divide each side by '2'.
u = 0.5

Simplifying
u = 0.5
Solution
u = {0, 0.5}