Hello Guest,
may you could something for it? It would at least be understandable. Here is what I did:
\(ab^2+3a^3b-8ab^2+4a^3b+2a^3b\),
\(-7ab^2+9a^3b\),
\(-ab*(7b-9a^2)\),
so finally the solution is: \(-ab*(7b-9a^2)\) . Hope this was helpful.
Straight
