Odpowiedź:
Df=R\{-1;1}
[tex] f( - 2) = \frac{2 - 2}{16 - 4} = 0 \\ f(0) = \frac{0 + 2}{4 \times 0 - 4} = \frac{2}{ - 4} = - \frac{1}{2} [/tex]
