Răspuns:
[tex]2^{222}[/tex] : [tex]2^{220}[/tex] = [tex]2^{222-220}[/tex] =[tex]2^{2}[/tex] =4
1/ [tex]4^{1240}[/tex] × [tex]8^{828}[/tex] = [tex]8^{828}[/tex] : [tex]4^{1240}[/tex] = [tex]2^{3*828}[/tex] : [tex]2^{2*1240}[/tex] = [tex]2^{2484}[/tex] : [tex]2^{2480}[/tex] = [tex]2^{2484-2480}[/tex] = [tex]2^{4}[/tex]=16