18........................
2 answers:
Answer:
d. 
Step-by-step explanation:
The given expression is

We can rewrite this as

We rewrite as a rational exponent to obtain;

Recall that;



The correct choice is D

Answer:
D
Step-by-step explanation:
We will use the radical property
to simplify this.
The problem is 
We can simplify this as:

Now we can use the property of radicals,
, to write as:

D is right answer.
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