Объяснение:
1)
3x^4y / 27x³y³=x/3y²
2)
(2X³-6X)/4X= [2X(X²-3)]/4X=1/2 (X-√3)(X+√3)
3)
(3X+3)/(X²+2X+1)= 3(X+1) / (X+1)² =3/(X+1)
4)
(27y³+1)/(1-9y²)= [(3y)³+1³]/ (1-3y)(1+3y)=
=(3y+1)[(3y)²-3y+1]/(1-3y)(1+3y)=(9y²-3y+1)/(1-3y)
Объяснение:
1)
3x^4y / 27x³y³=x/3y²
2)
(2X³-6X)/4X= [2X(X²-3)]/4X=1/2 (X-√3)(X+√3)
3)
(3X+3)/(X²+2X+1)= 3(X+1) / (X+1)² =3/(X+1)
4)
(27y³+1)/(1-9y²)= [(3y)³+1³]/ (1-3y)(1+3y)=
=(3y+1)[(3y)²-3y+1]/(1-3y)(1+3y)=(9y²-3y+1)/(1-3y)