ax 2 + bx + c < 0 con a > 0                                                                   powered by prof. Ciro Amoroso. 17/02/2017 v. 1.2   

  
   a                                                      b                                                       c
  


   delta =                                                                       

   tipo di soluzioni

  soluzioni equazione associata                       x1 =                               x2 =          

   in attesa di soluzioni