233k views
4 votes
Which of the following expressions is equivalent to ab² + 6ab + 7a3-14a?

(b + 7)(b + 6)(a²-2)
Ob(b + 6)+7(a²-2)
Oa[b(b + 6) +7(a²-2)]
a[(b + 7)(b + 6) (a²-2)]

1 Answer

2 votes

Answer:

"a[b(b + 6) +7(a²-2)]" (the third one)

Explanation:

User Ruslan Isay
by
7.2k points