What qualifications and/or certifications do you have in this subject matter?

what does this mean

It is a question that is asking you, "What makes you an expert on this subject?  Please list any reasons or supporting documents."

Step-by-step explanation:

It is asking if you have taken any special courses or classes on the subject.  How much experience do you have in this subject?

Example: I am a nurse.  I studied 4 years at a university and received my Bachelor's in Nursing Degree.  Every 2 years I complete 20 hours of Continuing Education to keep my Nursing License and my knowledge up to date.  I have been a nurse for 12 years.

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!