Question 479396
you can only group "like" numbers, as in, they have to have the same variables e.g.  x, a, b,  etc   and the same exponents  e.g.  x^2 and x^2, or a^3 and a^3   you cant combine  xy^2 and ab^3

with that said...

x2 - 6x + 5x - 30

x2 -x -30

and i dont think that that can factor down any more