How do you simplify and write #(-r^4s)^2 (-r^2s^5)^5# with positive exponents?
To simplify you need to get rid of the brackets first:
Use the law of indices:
Note that: an odd number of negative signs gives a negative while an even number gives a positive.
Now to simplify, use the law of indices....
Note that the negative sign is not the same as a negative index.