HP 9g Graphing Calculator - Manual (Page 74)

E-74
RUN
(1) 2 X 2 – 7 X + 5 = 0 X
1
= 2.5 , X
2
= 1
[ ]
2 [ ] [ ( – ) ] ] 7
[ ] 5
[ ]
(2) 25 X 2 – 70 X + 49 = 0 X = 1.4
[ ]
25 [ ] [ ( – ) ]
70[ ] 49