Respuestas

2012-10-08T03:57:28+02:00

(7y-3)(-11+2y)=

7y.-11+7y.2y-3.-11-3.2y=

-77y+14y²+33-6y=

14y²-83y+33=        aspa simple
2y           -11

7y           -3

   

=(2y-11)(7y-3)

 

SUERTE!!!