... m x m= + + (1), vi m l tham s thc. 1. Kho sỏt s bin thiờn v v th ca hm s (1) khi 1m=. 2. Tỡm m hm s (1) cú cc i v cc tiu, ng thi cỏc im cc tr ca th cựng vi gc to O to thnh mt ... 2323+= mxxxy (1) vi m l tham s thc. 3. Kho sỏt s bin thiờn v v th ca hm s (1) khi m = 0. 4. nh m hm s (1) cú cc tr, ng thi ng thng i qua hai im cc tr ca th hm s to vi hai trc ta mt tam ... 4 22y x mx= (1), vi m l tham s thc. 1. Kho sỏt s bin thiờn v v th ca hm s (1) khi 1m= . 2. Tỡm m th hm s (1) cú hai im cc tiu v hỡnh phng gii hn bi th hm s vi ng thng i qua hai...