2 вариант срочнл пжжж
N°1 a)=m^15×n⁴×p²/m^19×n²¹=n⁴p²/m⁴n²¹=p²/m⁴n^17 б)=x(x-y)/xy(x-y)=1/y N°2 a)=3k/5l³×k²/2×k/4m³=3k⁴/40l³m³ б)=(p²+1)(p²-1)/(p²-9)(p²-9)=p⁴-1/(p²-9)²