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→negative numbers: do have 2 roots
: Yes, negative numbers do have square roots, as explained later in the article. [[User:RSchlafly|RSchlafly]] 15:05, 24 April 2007 (EDT)
: Yes, negative numbers do have square roots, as explained later in the article. [[User:RSchlafly|RSchlafly]] 15:05, 24 April 2007 (EDT)
::Thanks, I was adding this is you were typing -
::Yes they do: 2i x 2i = -4, also -2i x -2i = -4 - just as solving a quadratic equation that has no real roots can result in a pair of imaginary numbers.
::I think the hidden comment is out of date, from back when I didn't know the math markup at article creation. Anyone can delete it. [[User:Human|Human]] 15:08, 24 April 2007 (EDT)