Calculating Square Roots by Hand: Proof

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In this video I prove the calculating square roots by hand method which I went over in my earlier videos. This proof is very algebra intensive so make sure to follow along slowly!

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I don't always calculate square roots by hand but when I do I make sure to prove the method is true ;)

mes
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I don't see any "proof"

randyskretka
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this is a awful. If it's true nobody knows because it's too complicated and not explained well so no one will be able to understand.

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