So I am studying for the SAT and am re-learning the grouping method for factoring. The current problem I'm on is $$7m^2 +59m+24$$
With grouping, the traditional way is to find two numbers that are factors of a*c, so in this case 7*24, that add up to 59 (factors of 168 that add up to 59). I can't do this very quickly. Given enough time, I can factor tree it and figure it out, and that what I recall doing when I learned this last year. However, given that I will be under a time constraint during the SAT, I'm wondering if there's a faster way..
I found this link: Here which I found interesting, but it seems to only work in situations where you can factor a number and its square (like 5 and 25). I also found this link: Here from Khan academy, but it only tells me the traditional 'find factors of ac that add up to b'
Anyways, any help is greatly appreciated!