Question

scrieti sub forma unei singure puteri cu exponent nr natural:
2 la puterea 15x 8 la puterea 10x 4 la puterea 21

Answer 1

   
[tex]2^{15} \times 8^{10} \times 4^{21} = \\ = 2^{15} \times (2^3)^{10} \times (2^2)^{21} = \\ = 2^{15} \times 2^{3 \times 10} \times 2^{2 \times 21} = \\ = 2^{15} \times 2^{30} \times 2^{42} = 2^{15+30+42} = 2^{45+42}=\boxed{2^{87}}[/tex]