Answer:
322x
Explanation:
if you do 3·3·3·3·3·3 you would get 729
then you would do 11·11·11·11·11 you would get 161051
finally you would do 20·20·20·20 to get 160000
finally you would subtract all those together to get 322 then you would just add the x to get the final answer of 322x