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→redudant +/-?: typo, urgh
I want to make sure our article won't mislead some teen studying for the SAT. --[[User:Ed Poor|Ed Poor]] 13:03, 24 April 2007 (EDT)
I want to make sure our article won't mislead some teen studying for the SAT. --[[User:Ed Poor|Ed Poor]] 13:03, 24 April 2007 (EDT)
== redudant +/-? ==
== redundant +/-? ==
There is no need for a +/- on both sides. Having it on one side is sufficient, since the "other" verion of the equation can be obtained by multiplying by -1.
There is no need for a +/- on both sides. Having it on one side is sufficient, since the "other" verion of the equation can be obtained by multiplying by -1.