Question

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4 la puterea 9 : 2 la puterea 3 : 2 la puterea 2 =....?....

Answer 1

= (2^2)^9 : 2^3 : 2^2 = 
   2^18 : 2^3 : 2^2 = 
   2^ (18 - 3 - 2) =
  2^13 

Answer 2

$(2^{2}) ^9: 2^{3}: 2^{2} =2^{18}$ × $2^{-3}$ × $2^{-2}$$= 2^{18-3-2}= 2^{13}$