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HP 9g Graphing Calculator User Manual

Page 159

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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

[

]

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