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  • Ambitious
2014-07-04T13:17:43+05:30
A square +b square+2ab
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a2+2ab+b2
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2014-07-04T15:12:02+05:30
(a+b)2 = a2 + 2ab+b2; a2 +b2 = (a+b)2 −2ab
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