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[(2²-3)•7+7 la puterea 0]:2³=

Răspuns :

[(4-3)•7+1]:8=
(1•7+1):8=
(7+1):8=
8 : 8= 1
[(2²-3)•7+7⁰]:2³= [(4-3)•7+1]:8= (1·7+1)÷8=8÷8=1