Objective 1: Simplify expressions with rational
exponents.
Simplify .
5. Is 
a negative
number ? Why?
6. For 
find
f (1000) .
Objective 2: Converting between exponential and
radical expressions.
Rewrite the exponential expression as a radical expression
and simplify.
Rewrite the radical expression as an exponential
expression and simplify.
Objective 3: Simplify radical expressions that are
roots of perfect powers.
Evaluate the following expressions for the given values of
the variables .
15.
when x = 3 and y =
12 .
16. 
when x = 19 and y =
6 .
17. 
when x = 3 and y =
4 .
18.
when x = 27 and y =
3.
Simplify the following radical expressions.
