what is the equivalent expression of 14n+21? I really need help with this it is due in the morning and I have no clue what I'm doing please helppppppp

Answer:
Step-by-step explanation:
[tex]14n+21\\\mathrm{Rewrite\:}21\mathrm{\:as\:}7\times\:3\\\mathrm{Rewrite\:}14\mathrm{\:as\:}7\times\:2\\\\=7\times\:2n+7\times\:3\\\\\mathrm{Factor\:out\:common\:term\:}7\\=7\left(2n+3\right)[/tex]