y^6+3y^5-2y^4-6y^3

Question

I need a step by step procedure to get this answer please.

Answer 1

y^6+3y^5=y^5(y+3)

-2y^4-6y^3=-2y^3(y+3)

y^6+3y^5-2y^4-6y^3=y^5(y+3)-2y^3(y+3)=(y+3)(y^5-2y^3)