Question
{(476 + 424)2 - 4 x 476 x 424} = ?
Answer: Option C
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Given Exp. = [(a + b)2 - 4ab], where a = 476 and b = 424 = [(476 + 424)2 - 4 x 476 x 424] = [(900)2 - 807296] = 810000 - 807296 = 2704.
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