=(2y-1)(-y)

Solution for =(2y-1)(-y) equation:

Simplifying
0 = (2y + -1)(-1y)

Reorder the terms:
0 = (-1 + 2y)(-1y)

Remove parenthesis around (-1y)
0 = (-1 + 2y) * -1y

Reorder the terms for easier multiplication:
0 = -1y(-1 + 2y)
0 = (-1 * -1y + 2y * -1y)
0 = (1y + -2y2)

Solving
0 = 1y + -2y2

Solving for variable 'y'.
Remove the zero:
-1y + 2y2 = 1y + -2y2 + -1y + 2y2

Reorder the terms:
-1y + 2y2 = 1y + -1y + -2y2 + 2y2

Combine like terms: 1y + -1y = 0
-1y + 2y2 = 0 + -2y2 + 2y2
-1y + 2y2 = -2y2 + 2y2

Combine like terms: -2y2 + 2y2 = 0
-1y + 2y2 = 0

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

Subproblem 1
Set the factor 'y' equal to zero and attempt to solve:

Simplifying
y = 0

Solving
y = 0

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

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

Simplifying
-1 + 2y = 0

Solving
-1 + 2y = 0

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

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

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

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

Divide each side by '2'.
y = 0.5

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