How do you factor $6ab - 21 + 14a - 9b$ ?

Question

1065 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-11-25T11:06:39

Change the order of the terms then factor by grouping to find:

$6ab-21+14a-9b=(3b+7)(2a-3)$

$6ab-21+14a-9b$

$=6ab-9b+14a-21$

$=(6ab-9b)+(14a-21)$

$=3b(2a-3)+7(2a-3)$

$=(3b+7)(2a-3)$

How do you factor 6ab - 21 + 14a - 9b6ab - 21 + 14a - 9b?