Răspuns:
[tex]( {2}^{3} )^{8} \div {2}^{21} - 4 \div 4 = [/tex]
[tex] {2}^{24} \div {2}^{21} - 1[/tex]
[tex] {2}^{3} - 1[/tex]
[tex] {2}^{3} = 8[/tex]
[tex]8 - 1 = 7[/tex]
[tex]spor \: la \: lucru[/tex]
