Question

Heheh ik im annoying but plssss im trying to graduate hs

Answer 1

Answer:

It's the 2nd one : -30$a^{5}$b + 12$a^{4} b^{3}$ + 16$a^{3} b^{2}$ - 4$a^{2} b^{4}$ - 2a$b^{3}$