a^2 - c^2 = (a - c)(a + c)
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jeifunk|Points 6716|
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Asked 9/21/2012 6:16:34 AM
Updated 10/28/2016 9:49:04 AM
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Andrew. [10/28/2016 9:49:03 AM], Confirmed by
Andrew. [10/28/2016 9:49:04 AM]
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