(4^14)^-2

Apply the formula : 
We get:




Apply the formula : 
We get:


convert negative exponent into positive

Hence final equivalent answer is 
You can also use
as exponent form if you don't want to remove negative sign from exponent.
51. I checked the comments but I still didn't understand it, sorry :/
54.
(43+45+47+49)=184
They are all odd and they are in consecutive order (one after another)
Answer:
the answer would be A ? ig