For any positive integers a and b, the operation Ⓧ is defined as aⓍb=(2a-1)^b-1. what is the value of (2Ⓧ2)Ⓧ3?

positive-integers

#1

for any positive integers a and b, the operation Ⓧ is defined as aⓍb=(2a-1)^b-1. what is the value of (2Ⓧ2)Ⓧ3?

Answer:

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