1. 

   except New Member

   x(x+3)>(x+1)(x+3)

    

   except, 31 янв 2010

   #1
2. 

   Diana New Member

   X^2 + 3x > x^2 + 4x + 3
   - x > 3
   x < -3
   x принадлежит [-беск.; -3)

    

   Diana, 31 янв 2010

   #2