Find the rank of matrix by normal form 

Plz give me answer fast 
This is Metrix question 

Dear Student,

Please note that that the image shared in the thread is unclear. The third and fourth column is blurred and thus it's not possible to provide you with a proper solution.
I would thus, request you to ask the question again in a new thread, with a clear image so that our experts can provide you with some useful aid.

Hope to hear from you soon.

Regards