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does (3 1/2)^2 = 9 1/4

 Nov 6, 2015
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No it doesn't      (3 1/2)^2   =   (7/2)^2  =    49/4  = 12 1/4

or another way     (3 1/2)^2  =  (3 + 1/2)^2 =  (3+1/2)(3+1/2) =  9 + 1/2(3) + 1/2(3) + 1/2(1/2) = 9 + 3 + 1/4 = 12 1/4

 Nov 6, 2015

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