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3 la 52-3 la 51-3la 50 totul la 2 :9la 50 ×25

Răspuns :

Acudorina
(3^52-3^51-3^50)^2:9^50x25=[3^50(3^2-3-1)]^2:(3^2)^50x5^2=(3^50x5)^2:(3^2)^50x5^2=1

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