EX100 Utiliser une operation originale


si l'on complete l'ecriture dun nombre par * ,on ajoute a ce nombre le triple de sa valeur.

Exemple: -2*= -2+3 x (-2)= -8

-2**= -8 +3 x ( -8)= -32

Quel est le nombre entier a tel que a** = -448 ?


BEsOIN DAIDE sVP
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