The bottle of tablets has an expired expiration date.

which part is wrong???

"expired expiration"

What can you do to get rid of this repetition?

we can say

The bottle of tablets has expired.

Correct.

i have other one

Finishing quickly is not as important as answer all the question correctly. answer/all the/ correctly
i think correctly is wrong one??
am i right??

In this sentence, the word "expired" is incorrect. The correct term to use in this context is "expiration."