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calculati 3 la puterea 2 inmultit cu 9 la puterea 2 inmultit 27 la puterea 2 x (1/81) la puterea 2 ( aratati cum ati calculat )

Răspuns :

3^2*9^2*27^2*(1/81)^2=3^2*(3^2)^2*(3^3)^2*(1/3^4)^2=
3^2*3^4*3^6*(3^(-4))^2=3^(2+4+6)*3^(-8)=3^12*3^(-8)=3^(12-8)=3^4=81

^ - inseamna "la puterea"
= 3^2 x (3^2)^2 x (3^3)^2 x (3^-4 )^2 = 
   3^2 x 3^4 x 3^6 x 3^-8=
   3^(2+4+6-8) = 
   3^ 4 = 
    81