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calculati [3^2×3^3+2^54:2^52+(3^5)4:3^20]:31

Răspuns :

[3²·3³+2⁵⁴:2⁵²+(3⁵)⁴:3²⁰]:31=
[3⁵+2²+3²⁰:3²⁰]:31=
(3⁵+4+1):31=
(3⁵+5):31=
(243+5):31=
248:31=
8