Step-by-step explanation:
Factor the trinomial with the GCF.
The GCF of all of the terms is 3.
Using the GCF:
[tex]3(5n^2-9n-2)[/tex]
Using 2 binomials to factor:
[tex]3(5n+1)(n-2)[/tex]
When unfactorized, the expression will equal [tex]15n^2-27n-6[/tex].