Question

lim⁡ (x^2-9)/(x-3)
x→2

Answer 1

x^2-9 tende à 2^2-9=-5
x-3 tende à 2-3=-1

Portanto:

lim⁡ (x^2-9)/(x-3)=-5/(-1)=5
x→2

Answer 2

Lim (x²-9)/(x-3)  = (2²-9)/(2-3) =(4-9)/(-1) =  5

x-->2

Resposta: 5