Answer:
[tex]\large\boxed{y^3-6y^2+5y=y(y-1)(y-5)}[/tex]
Step-by-step explanation:
[tex]y^3-6y^2+5y=y(y^2-6y+5)=y(y^2-y-5y+5)\\\\=y[y(y-1)-5(y-1)]=y(y-1)(y-5)[/tex]