
Mark M. answered 02/25/15
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
(4y2 - 2y) / (5y2 - 5y)
2y(2y - 1) / 5y(y - 1)
2(2y -1) / 5(y - 1)
Perhaps the numerator is 4y2 - 4y?