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[(13²-12²)·2³-3³·2²+1]:3=?
va rig sa rezolvati pas cu pas


Răspuns :

[(169-144)×8-27×4+1]:3=
(25×8-108+1):3=
(200-108+1):3=
(92+1):3=
93:3=31
[(13²–12²)×2³–3³×2²+1]:3
=[(169–144)×8–27×4+1]:3
=(25×8–108+1):3
=(200–108+1):3
=(92+1):3
=93:3
=31