Răspuns:
[tex]126 = 2 \times {3}^{2} \times 7[/tex]
[tex]54 = 2 \times {3}^{3} [/tex]
[tex](126.54) =2 \times {3}^{2} = 18[/tex]
[tex] {2}^{126} = ( {2}^{7} )^{18} = {128}^{18} [/tex]
[tex] {5}^{54} = ( {5}^{3} )^{18} = {125}^{18} [/tex]
[tex] = > {2}^{126} > {5}^{54} [/tex]