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Calculati:
9^23 : [ 3^44 + 3^20 • 27^8 + 3^60 : 81^4 ] - 2^20 : ( 2^19 + 2^19 )
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Răspuns :

9^23:[3^44+3^20×27^8+3^60÷81^4]-2^20÷(2^19+2^19)=
9^23÷(3^44+3^20×3^24+3^60÷3^16)-2^20÷2^19(1+1)=
3^46÷(3^44+3^44+3^44)-2^20÷2^19×2=
3^46÷3^44(1+1+1)-2^20÷2^19×2=3^46÷3^44×3-2^20÷2^19×2=
3^2×3-2^1×2=9×3-2×2=27-4=23

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