Simplify the expression: $ab^2 + 3a^3b - 8ab^2 + 4a^3b + 2a^3b$
ab^2 + 3a^3b - 8ab^2 + 4a^3b + 2a^3b combine like terms
(ab^2 - 8ab^2 ) + (3a^3b + 4a^3b + 2a^3b) =
-7ab^2 + 9a^3b
Thanks
+153 
