+0  
 
0
22
1
avatar+0 

PLEASE EXPLAIN

 Feb 6, 2024
 #1
avatar+129830 
+1

(2^1 - 3) + (2^2 -3) +(2^3 - 3) + (2^4 -3) + (2^5 - 3)  =

 

-1 + 1   + 5  + 13 + 29  = 

 

47

 

cool cool cool

 Feb 7, 2024

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