# Evaluate the square root of a perfect square number ex 5, root(64)

square root of 64
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welcome ladies gentlemen so what Id like to do is show you how to determine the squit or evaluate for the square root of 64 now again the square root represents you know what number multiplied by itself gives us 64 and I think between zero and a hundred its very very important for you to know how to do the square what the square numbers are so Im actually just going to kind of go through this and determine that so you guys can determine the kind of square numbers up to 100 and see if 64 is a square number and you could obviously could prime factorize this break this down into its prime factors but I have a couple of videos for that so and I think you know what we want to get to in this point is making sure we know our square numbers so if I did 2 times 2 that equals 4 now remember the reason why are we tearing about 2 times 2 because remember the square root of 2 times 2 is equal to the square root of 4 which is just equal to 2 so were taking the square root of a number we want to see the square root of a number is the number that you multiply by itself to give you 4 which is 2 so lets do 3 times 3 is equal to 9 4 times 4 is equal to 16 5 times 5 is equal to 25 6 times 6 equals 36 7 times 7 equals 49 8 times 8 equals 64 so since 8 times 8 equals 64 again lets think back a what is the square root say what does it mean the square root represents what number multiplied by itself what number multiplied by itself gives us 64 64 the same thing 8 times 8 well what number multiplied by itself gives us 64 these are the same things so therefore the answer is just 8 so the square root of 64 is 8 all right so there we go late dumb that is how you evaluate a perfect square Thanks you tags:
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