Simplifiez $\dfrac{4^{4}\times 4^{8}}{4^{-5}}$=

Simplifiez $\dfrac{8^{12}\times 8^{11}}{8^{-7}}$=

Simplifiez $\bigg(\dfrac{8^{7}}{8^{-9}}\bigg)^{-6}$=

Simplifiez $\bigg(\dfrac{5^{9}}{5^{-8}}\bigg)^{-1}$=

Simplifiez $9^{-12}\times 9^{-2}\times 9^{10}$=

Simplifiez $2^{7}\times\dfrac{2^{1}}{2^{5}}$=

Simplifiez $\bigg(11^{12}\bigg)^{-4}$=

Simplifiez $\dfrac{10^{1}}{10^{-1}}$=

Simplifiez $6^{12}\times\dfrac{6^{4}}{6^{-3}}$=

Simplifiez $\dfrac{7^{9}}{7^{-10}}$=