2y*+9y-5. 2y*+10y-y-5. 2y(y+5)-(y+5)

————— = ——————— = ——————— =

4y*-1. (2y-1)(2y+1). (2y-1)(2y+1).

(y+5)(2y-1). y+5

= —————— = ———. Ответ y+5/2y+1

(2y-1)(2y+1). 2y+1