Question

3 la puterea -5 * 3 la puterea 11 totul supra 9 la puterea 2

Answer 1

$\dfrac{3^{-5}\cdot3^{11}}{9^2}=\dfrac{3^{-5+11}}{(3^2)^2}=\dfrac{3^6}{3^4}=3^{6-4}=3^2=9$