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12 la pt.3-12 la pt.2-12 la pt. 1


Răspuns :

12^3 - 12^2 - 12^1 =

= 12^1 × (12^2 - 12 - 1) =

= 12 × (144 - 12 - 1) =

= 12 × 131 =

= 1 572