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A. 2906 B. 3116
C. 2704 D. 2904
E. None of these    

Answer: Option C

Explanation:

 

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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