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249 bytes added ,  06:08, April 24, 2007
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Excuse me.  I'm going to vent.  [[User:RSchlafly|RSchlafly]], you are completely wrong.  As in, no ideology needed.  The square root of 9 ''is'' plus or minus 3.  The equation shown expresses that clearly.  When a square root is taken, the plus or minus becomes required in order to keep track of multiple possible solutions.  Unfortunately, the last math text I kept was my calculus book, so I don't have a ready cite from a high school algebra text.  I can't think of any "polite" ways to say that you don't understand what you are talking about.  perhaps when I struggle to remember the steps in completing the square and post it on one of these math files, you'll see why it matters. [[User:Human|Human]] 02:05, 24 April 2007 (EDT)
 
Excuse me.  I'm going to vent.  [[User:RSchlafly|RSchlafly]], you are completely wrong.  As in, no ideology needed.  The square root of 9 ''is'' plus or minus 3.  The equation shown expresses that clearly.  When a square root is taken, the plus or minus becomes required in order to keep track of multiple possible solutions.  Unfortunately, the last math text I kept was my calculus book, so I don't have a ready cite from a high school algebra text.  I can't think of any "polite" ways to say that you don't understand what you are talking about.  perhaps when I struggle to remember the steps in completing the square and post it on one of these math files, you'll see why it matters. [[User:Human|Human]] 02:05, 24 April 2007 (EDT)
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:Technically the plus/minus should go in front of the radical if you are referring to both square roots.  Usually if there is no sign in front of radical it means just the positive square root. [[User:Scriabin|Scriabin]] 02:08, 24 April 2007 (EDT)
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