Question

factor by grouping
3c^2+1c-24

Answer 1

If all you're looking for is an answer:
(c+3)(3c-8)

Answer 2

ac=-72, then rewrite c as 9c-8c

3c^2-8c+9c-24=c(3c-8)+3(3c-8)=(3c-8)(c+3)

Answer 3

by rewriteing the middle terms using factors of 3*(-24)=-72 we can factor by grouping

Answer 4

this process allows you to "reverse" the steps you would get from a FOIL if you started with (3c-8)(c+3)

Answer 5

FOIL: (3c-8)(c+3) = 3c^2+9c -8c -24
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