Răspuns:
[tex] {2}^{70} \div { ({2}^{3}) }^{23} = \\ {2}^{70} \div {2}^{69} = {2}^{1} = 2[/tex]
[tex]\it2^{70}:8^{23}=2^{70}:(2^3)^{23}=2^{70}:2^{3\cdot23}} =2^{70}:2^{69}=2^{70-69}=2[/tex]
