Question 74020
Simplify using rules of exponents 
#26. 
(2x^-1y^2)^-3
= 2^-3 * x^3 *y^-6
=x^3/(8y^6)
-----------
#38.
(-2y^2/x)^-3 
The negative on the exponent means "invert"; the 3 means "cube"
You get:
Invert: [x/(-2y^2)]^3
Cube:   x^3 / (-8y^6)
Rewrite as:

= -[x^3/8y^6]

-------------
Cheers,
Stan H.



Cheers,
Stan H.