Factor completely

8y-50y^3

To factor the expression 8y - 50y^3, we can factor out the greatest common factor, which is 2y:

2y(4 - 25y^2)

Now, we can further factor the expression inside the parentheses using the difference of squares formula:

2y(2 - 5y)(2 + 5y)

Therefore, the completely factored form of 8y - 50y^3 is 2y(2 - 5y)(2 + 5y).