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posted by Keaton on Thursday, May 27, 2010 at 9:36pm.
(3-2square of 7(3+2square of 7 can someone help me please. This must turn in tonight
(3-2sqrt7)(3+2sqrt7) is of the form (a-b)(a+b) which equals a^2 - b^2. That means the answer is 9 - 28 = -19
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