Simplifiez $4^{-11}\times 4^{4}$=

Simplifiez $\dfrac{5^{-8}}{5^{-1}}$=

Simplifiez $\bigg(\dfrac{6^{-1}}{6^{-5}}\bigg)^{-5}$=

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

Simplifiez $\dfrac{9^{-8}}{9^{-10}}$=

Simplifiez $5^{1}\times\dfrac{5^{-4}}{5^{1}}$=

Simplifiez $\bigg(\dfrac{3^{4}}{3^{11}}\bigg)^{10}$=

Simplifiez $2^{8}\times 3^{8}$=

Simplifiez $\dfrac{4^{2}\times 4^{4}}{4^{3}}$=

Simplifiez $\dfrac{10^{-12}}{10^{3}}$=