Question

помогите сделать!!!!!

Answer 1

Ответ:

$y = 5 {x}^{3} + 2x - 1 \\ f(x) = 5 {x}^{3} + 2x - 1 \\ f( - 1) = 5 \times ( - 1 {)}^{3} + 2 \times ( - 1) - 1 \\ f( - 1) = - 5 - 2 - 1 \\ f( - 1) = - 8$