Ответ:
- \(\dfrac{5^8\cdot5^6}{(5^4)^3}=\dfrac{5^{8+6}}{5^{4\cdot3}}=\dfrac{5^{14}}{5^{12}}=5^{14-12}=5^2=25\).
- \(\dfrac{7^3\cdot7^{10}}{(7^4)^3}=\dfrac{7^{3+10}}{7^{4\cdot3}}=\dfrac{7^{13}}{7^{12}}=7^{13-12}=7\).
- \(\dfrac{(2^7)^4}{(2^8)^3}=\dfrac{2^{7\cdot4}}{2^{8\cdot3}}=\dfrac{2^{28}}{2^{24}}=2^{28-24}=2^4=16\).
