GRE Math : How to simplify square roots

Study concepts, example questions & explanations for GRE Math

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Example Questions

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Example Question #1 : Simplifying Square Roots

What is  equal to?

Possible Answers:

Correct answer:

Explanation:

 

1. We know that , which we can separate under the square root:

 

2. 144 can be taken out since it is a perfect square: . This leaves us with:

This cannot be simplified any further.

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