HP F2222A#ABA hp 9g_user's manual_manuel de l'utilisateur_EF_HDP1SG181S5.pdf - Page 159
X 2 - 7 X + 5 = 0, X 1 = 2.5 , X 2 = 1, 70 X + 49 = 0, X = 1.4
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Page 159 highlights
(1) 2 X 2 - 7 X + 5 = 0 [ ] RUN X 1 = 2.5 , X 2 = 1 2 [ 7 [ ] 5 [ ] (2) 25 X 2 - 70 X + 49 = 0 [ ] X = 1.4 F-72
![](/manual_guide/products/hewlettpackard-f2222aaba-hp-9gusers-manualmanuel-lutilisateurefhdp1sg181s5pdf-05c42ab/159.png)
F-72
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
[
]