Respuesta :

Hrishii

Step-by-step explanation:

[tex]g(n) = {n}^{3} + n \\ \\ f(n) = 3n + 5 \\ \\ (g - f)(n) = g(n) - f(n) \\ =( {n}^{3} + n) - (3n + 5) \\ = {n}^{3} + n - 3n - 5 \\ \purple{ \boxed{ \bold{ \therefore (g - f)(n) = {n}^{3} - 2n - 5 }}} [/tex]
Ummm that’s hard lol sorry