So find the greatest common factor (GCF), and make it go on the outside. Or, what is the greatest number that will go in all of those numbers. That would be 3 in this case. So you write it as if you made that equation when you distributed a 3.
3 (2x^2 + 9x + 7)
Then you factor more.
3 (2x^2 + 7) (x + 1)
