Răspunsuri

2014-08-22T17:09:59+03:00
Cel mai inteligent răspuns!
2014-08-22T17:11:55+03:00
xy+2x-5y-10 
aranjam convenabil termenii astfel incat sa dam factor omun
x(y+2)-5(y+2)
=(y+2)(x-5)
2 4 2