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Sagot :

Bonjour,

A= 9 +( 8 +8)*-2=

9 +( 16*-2)=

9 - 32 = -23

B

2-² ou 2² ?

Je prends 2²

=4 +8-2= 10

2^-²

1/4 +8 -2 =

1/4 +6

1/4 + 24/4 = 25/4

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