Respuesta :
[tex] = - 2 {n}^{2} - n - 8[/tex]
hope it helps
#carry on learning

Answer:
- 2n² - n - 8
Step-by-step explanation:
(n - 4)(n + 2) - n(3n - 1) ← expand the product of factors using FOIL
= n² - 2n - 8 - n(3n - 1) ← distribute parenthesis by n
= n² - 2n - 8 - 3n² + n ← collect like terms
= - 2n² - n - 8