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Sagot :

Réponse:

num de la question-reponse

1-reponse 2

2-réponse 2 ou 3 c'est pareil

3-reponse 1

4- reponse 1 car

3x-2=0 ou x+5=0

3x=0-(-2) x=0-5

3x=2 x=-5

x=2/3

5-reponse 3 car

=6-4(x-2)

=6-4x-8

=-2-4x

6-Réponse 3 car

=4x²-12x+9

=2x²-2×2x×3+3²

vu que a²-2ab+b²=(a-b)²

donc (2x-3)²

7- reponse 1 car

=5×(-2)²+2×(-2)-3

=5×4+(-4)-3

=20-7

=13

8- les 3 reponses sont justes

9-reponse 2

10-

11-reponse 2

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