A Nice Olympiads Trick | No Calculator Allowed

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[@jerrypaquette5470]

3^8 = 3^4 x 3^4 3^4 =81 It is not that difficult to multiply 81 x 81.

[@stefans.7681]

Thank you, i did it the same way using binomial formula

[@TheFrewah]

Maybe 15s to realise the solution is 3^8, then I lost interest