# How do you simplify and write #(-r^4s)^2 (-r^2s^5)^5# with positive exponents?

##### 1 Answer

Jan 14, 2017

#### Explanation:

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.