Check this please.

[latresa31s]

is this correct

I am working on factoring

the problem is
12ab - 28bc + 20c

4 is the GCF

so the answer would be

4(3ab - 7bc + 5c)

how right is this

 

[dark-kitsune]

Yes its correct. You can know that it is correct because if you distribute, it works out perfectly.

 

[latresa31s]

Thanks