Odpowiedzi

2009-04-05T10:19:55+02:00
Delta =25 - 16 = 9
a = 1, b = 5, c =4
f(x) = a(x + b/2a)^2 - delta/4a = (x + 5/2)^2 - 9/4
2009-04-05T10:20:05+02:00