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Post date: Nov 05, 2015 2:43:0 PM
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(x+2y)2 - (2y+x)2
(x+2y)2 - (x-2y)2
(5ab+6a2b4)2 - (5ab-6a2b4)2
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Post date: Nov 05, 2015 2:43:0 PM
es da 369 a 372 pag 569
(x+2y)2 - (2y+x)2
(x+2y)2 - (x-2y)2
(5ab+6a2b4)2 - (5ab-6a2b4)2