1) 7m + Зmn = m (7+3n
2) a7+a4=a(7+4)=11a
3) -m3-mnp=-m(3+np)
4) x6y - х4у3 + x3 y2 = 6xy - 12ху + 6xy=6xy(1-2+1)=6xy*0=0
1) 7m + Зmn = m (7+3n
2) a7+a4=a(7+4)=11a
3) -m3-mnp=-m(3+np)
4) x6y - х4у3 + x3 y2 = 6xy - 12ху + 6xy=6xy(1-2+1)=6xy*0=0