Question

y^4+2y^3z-2yz^3-z^4​

Answer 1

Answer:

fhchjbvbvbvvbvhnbjkhjjbbb

Answer 2

Answer:

y×4+2y×3z-2yz×3-z×4

4y+6yz-6yz-4z

4y-4z

4(y-z)

Step-by-step explanation:

hope it's helps you