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(25^2×5^4)^3:5^22-2^2^2 dau coroana

Răspuns :

(25^2×5^4)^3:5^22-2^2^2=(5^2^2×5^4)^3:5^22-2^4=(5^4×5^4)^3:5^22-2^4=
5^8^3:5^22-2^4=5^24:5^22-2^4=5^2-2^4=25-16=9