Utente
y^2/4 - (x+3)^2/9 = 1
(x-1)^2/64 - (y+2)^2/16 = 1
y^2/36 - (x-2)^2/16 = 1
(x-4)^2/144 - (y+1)^2/25 = 1
y^2/64 - (x+5)^2/49 = 1
y^2/16 - x^2/9 = 1
(x-3)^2/49 - (y+4)^2/25 = 1
y^2/25 - (x+2)^2/36 = 1
(x-2)^2/36 - (y+3)^2/81 = 1
y^2/25 - (x+4)^2/36 = 1