In Drill set 3; question 33 reads y to the power -4 times z to the power of -4 and asks for the negative exponent to be written as a positive exponent (y^-4*z^-4).
The answer is listed as 1 divided by y to the power of z to the power of 4. 1/(y^z)^4. I do not understand how to get this answer. Can you please explain?
Thanks!