Question

lim(x→ -1)(x 3 -x 2+1)

Answer 1

Подставь и всё
lim x-> -1 (x^3 - x^2 + 1) = 
= ( (-1)^3  - (-1)^2 + 1) = 
= ( - 1 - 1 + 1 ) = 
= - 1