Which trinomial is the product of the binomials (2ab – b)(a + 3)?
A. 2a²b – 7ab – 3b
B. 2a²b + 5ab + 3b
C. 2a²b + 5ab – 3b
D. 2a²b + 7ab – 3b

Question

Which trinomial is the product of the binomials (2ab – b)(a + 3)? 
A.	2a²b – 7ab – 3b 
B.	2a²b + 5ab + 3b
C.	2a²b + 5ab – 3b
D.	2a²b + 7ab – 3b

thefurball · Answer

Dude you gotta do FOIL or whatever or just distribute like a normal person, do you know how to do that? If not I'll walk you through it

alones · Answer

Yea F.O.I.L. system would work (;
Maybe ur not familiar with that.
Any ways (2ab+−b)(a+3)
(2ab)(a)+(2ab)(3)+(−b)(a)+(−b)(3)
$2a^{2}$b+6ab−ab−3b
$\ 2a^{2}$b+5ab−3b