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** and ++

Math brain teasers require computations to solve.

 

Puzzle ID:#30302
Fun:*** (2.33)
Difficulty:*** (2.73)
Category:Math
Submitted By:mercenary007*jm***

 

 

 



If 3**5 = 27 but 5**3 = 35

4++8 = 20 but 8++4 = 16

Then what is the result of (8**7)++9?

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