Odpowiedzi

2010-04-13T19:33:19+02:00
A) 4 xy +x+y-xy=3xy+x+y
b)5ab-10b+8ab-3a=13ab-10b-3a

d)-1,5pq+6p-1,25p+2qp=0.5pq+4,75
e)40m-26mn+7m-32mn=47m-58mn