Review of what to do with square roots
Channel: Paul King
Date: 20/03/2016

Square roots occur in answer to the question: "What number times itself gives us 'x'?" for the square root of 'x'? In the video, I call the radical symbol a "surd", which was only sometimes correct. Sometimes, I just call it a "square root sign" or "square root symbol". Square roots of prime numbers cannot be simplified (irreducible radicals are what are correctly referred to as a "surd", because they work out to irrational numbers), and square roots of composite numbers (not prime) can sometimes be simplified.

This video is a review, a casual glance at some examples of what to do, and what not to do, with square roots. It also works as a first-time lesson, because the examples are simple. But as a first-time lesson, it is not really that thorough, so I am calling it a review.

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Grade 10 Math Playlist: http://bit.ly/1Sj8qOB
Grade 12 Advanced Functions Playlist: http://bit.ly/1OoXhWH
Grade 12 Calculus and Vectors Playlist: http://bit.ly/1Sj8qOB
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