VA ROG MULT LA MATE, NU MAI AM TIMP DAU ORICE

Răspuns:
6.a.x
b.x+1/2x
c.x+3/x-3
d.7x+1/x+2
7.a.1/2
b.1/3x
c.4xy/3z la a 3
d.3x/5y
e.4xy