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Line 32: + +
→+/- notation deleted?: wow...
:::: I gave an explanation. If you don't believe, trying punching 9 and then the square root button on a calculator. [[User:RSchlafly|RSchlafly]] 01:56, 24 April 2007 (EDT)
:::: I gave an explanation. If you don't believe, trying punching 9 and then the square root button on a calculator. [[User:RSchlafly|RSchlafly]] 01:56, 24 April 2007 (EDT)
:::::Tell me, what does -3 x -3 equal? Or -2 x -2? Hmmm. <font color="FFD700">[[User:ColinR|ColinR]]</font><sup><font color="000000">[[User_talk:ColinR|talk]]</font></sup> 01:58, 24 April 2007 (EDT)
:::::Tell me, what does -3 x -3 equal? Or -2 x -2? Hmmm. <font color="FFD700">[[User:ColinR|ColinR]]</font><sup><font color="000000">[[User_talk:ColinR|talk]]</font></sup> 01:58, 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)