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

Simplifiez $\dfrac{5^{4}\times 5^{4}}{5^{-6}}$=

Simplifiez $\dfrac{4^{-12}}{4^{9}}$=

Simplifiez $\dfrac{5^{7}\times 5^{7}}{5^{12}}$=

Simplifiez $\bigg(\dfrac{4^{5}}{4^{-1}}\bigg)^{-11}$=

Simplifiez $\bigg(\dfrac{2^{3}}{2^{-11}}\bigg)^{12}$=

Simplifiez $4^{12}\times 4^{3}$=

Simplifiez $6^{-10}\times 6^{2}$=

Simplifiez $7^{6}\times 4^{6}$=

Simplifiez $2^{-3}\times 2^{12}\times 2^{11}$=