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2^40+3^60:3^5)-[(2^8^5+(3^5)^11
(2^1×3^9):(2^8×3^7)-(7^10×5^9):(7^10×5^8
[(2^3)^40+7^40]:[4^60+(7^2)^20
vă rog frumos. Dau coroana ​