5y(1-y) simplified do not factorise

Distribute the term outside the parenthesis across the terms inside:

1. Multiply \(5y\) by \(1\):

5y \cdot 1 = 5y

2. Multiply \(5y\) by \(-y\):

5y \cdot (-y) = -5y^2

Combine these results:

5y - 5y^2

Thus, the simplified form is:

5y - 5y^2

The answer is:

5y - 5y^2