SOLUTION: How do you factor the poynomial completely 7a-7b-ac-bc

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Question 48694: How do you factor the poynomial completely
7a-7b-ac-bc
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
do it in stages:
7a-7b-ac-bc
7(a-b)-ac-bc
7(a-b)-c(a-b)

and now lo and behold both halves have a similar term, (a-b), so take this out of both:
(a-b)(7-c)

there you go.

jon