Question

Answer all the parts with full explanation please? Thanks❤

Answer 1

Answer:

a) -2p^2-9pq+8q^2

b)2x^3-3x^2y+2xy^2+4y-y^3

c)0

Step-by-step explanation:

steps are very easy just sum the coefficient of same expression

Answer 2

Answer:

Step-by-step explanation:

a)-2p²-9pq+6q²

b)2x³-3x²y+2xy²+4y-y³

c)0