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if x=44 then (x-7)(x+7)=?
 Aug 6, 2013

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x = 44

(x - 7) = 44 - 7 = 37
(x + 7) = 44 + 7 = 51

(x - 7)(x+7) = 37 * 51 = 1887.
 Aug 6, 2013

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