Need to factor this trinomial, and not having much luck.
Try to break the second term into two. Let us try to present 5m as 2m+3m.
6m2-3m-2m-4. Now let us group terms together.
(6m2-3m)-(2m+4) Factor out common factors.
3m(2m-1)-2(m+2). There is no way to factor further. Let us try different grouping.
(6m2-2m)-(3m+4)=2m(3m-1)-(3m+4) Again, no luck.
Let us try this:
6m2-5m-4=6m2-8m+3m-4=(6m2-8m)+(3m-4)=2m(3m-4)+(3m-4). Now we got a common factor at last!
Factor (3m-4) out to obtain: