Răspuns: [tex]\bf \red{\underline{~2^{139}~}}[/tex]
Explicație pas cu pas:
[tex]\bf e)~~2^{70} \cdot 8^{23}= 2^{70} \cdot \Big(2^{3}\Big )^{23}= 2^{70} \cdot 2^{3\cdot 23}=[/tex]
[tex]\bf =2^{70} \cdot 2^{69}= 2^{70+69}=\red{\underline{~2^{139}~}}[/tex]
