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Sagot :

CO0309

Réponse:

exercice 1 :

1. 3x^2 + 2x - 1

2. (3x-1) (x+1)

3. 6x-2

4. 1/3

exercice 3 :

1. 2√2

2. 3√3

3. 8√2

4. 66√5

5. 2√5/15

6. −√5/4

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