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Sagot :

Réponse:

A = 53

B = 149

C = 63

D = 243

Explications étape par étape:

A = 3 × 16 + 5

= 48 + 5

= 53

B = 12² + 5

= 144 + 5

= 149

C = 3 × (16 + 5)

= 3 × 21

= 63

D = 3 × 9²

= 3× 81

= 243

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