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Aflati rezultatul calcului:10^2-(7^3x7^3)^3:49^8

Răspuns :

10^2-(7^3)3×(7^3)3÷49^8=10^2-7^9×7^9÷49^8=10^2-7^9×7^9÷49^8=10^2-7^18÷49^8=10^2-(7^2)8=10^2-7^18÷7^16=10^2-7^2=100-49=51