Originally Posted by

**ford2008** Hi guys,

the task: Simplify using the exponent laws. Write the final answer using only positive exponents. Evaluate where possible.

1. 2x^-1

my answer:

2

---

x

Is that right? **<--- yes**

2. (5p^3)^-2

my answer:

1

-----

(5p^3)^2

= 1

-------

10p^6

Is that right? **<--- no, because 5^2 = 25**

3. (-32x^-10 y^15)^1/5

my answer:

(-32)^1/5 (x^-10)^1/5 (y^15)^1/5

How can I simplify further??? **<--- The exponents must be multiplied. ... and 32 = 2^5**

4. ( x^1/2 ) ^1/2

(------------)

(x^1/3 x^1/5)

the whole task is in one bracket and ^1/2 is outside the bracket.

How can I simplify? **<--- Simplify first the term in the large bracket:**