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9¹⁸:9¹⁵=
(7⁸)²¹=
(345ˣ1256)²⁵=
(3⁵ₓ3²3)⁴:9²ˣ9⁸=
ofer 25 puncte.


Răspuns :

9^18:9^15=9^3
(7^8)^21=7^168
(345x1256)^25=433320^25
(3^5x3^2x3)^4:9^2x9^8=3^44