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प्रश्न
Expand : ( 5a - 3b + c )2
बेरीज
उत्तर
( 5a - 3b + c)2 = (5a)2 + (3b)2 + (c)2 - 2(5a)(3b) - 2(3b)(c) + 2(c)(5a)
= 25a2 + 9b2 + c2 - 30ab - 6bc + 10ca
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Expansion of Formula
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