Question

lim x стремится к -4, x^2-16/x+4

Answer 1

lim x-> - 4 (x^2 - 16)/(x + 4) = 0/0
lim x-> - 4 ((x - 4)*(x + 4))/(x + 4) = 
lim x-> - 4 (x - 4) = - 4 - 4 = - 8