Объяснение:
y³−y²−3y+27= y³+27-y²-3y=(y³+3³)-y(y+3)=
=(y+3)(y²-3y+9)-y(y+3) =(y+3)(y²-3y+9-y)= (y+3)(y²-4y+9)
Объяснение:
y³−y²−3y+27= y³+27-y²-3y=(y³+3³)-y(y+3)=
=(y+3)(y²-3y+9)-y(y+3) =(y+3)(y²-3y+9-y)= (y+3)(y²-4y+9)