Question

lim x²-4 / x²-2x quando x=2

Answer 1

$\lim_{x \to \ 2} \frac{x^2 - 4}{x^2 - 2x}$

Fatorando.

$\lim_{x \to \ 2} \frac{(x+2)(x-2)}{x(x-2)} = \frac{x+2}{x}$

Colocando o valor:

$\frac{2+2}{2} = 2$