Question

$Comparati:3^{38} cu 2^{59}-2^{58}-2^{57}$                    

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Answer 1

$2^{59} - 2^{58} - 2^{57}= 2^{57}( 2^{2} -2-1)= 2^{57}$
$3^{38} = 9^{19}$
$2^{57} = 8^{19}$
Evident $9^{19} > 8^{19} => 3^{38} > 2^{59} - 2^{58} - 2^{57} .$