Question

plz solve this step by step​

Answer 1

$[( { \frac{1}{3 } )}^{-2} - {( \frac{1}{9} )}^{-2} ]÷ {3}^{-2} \\ \\ [ {3}^{2} - {9}^{2} ]÷ { (\frac{1}{3})}^{2} \\ \\ [9-81]×9 \\ \\ -648$

Answer 2

Answer:

yes this up one is right sorry I don't have time to copy it

but I'll make u sure that it is right