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Question

 


{(476 + 424)2 - 4 x 476 x 424} = ?



Options:
A .  2906
B .  3116
C .  2704
D .  2904
Answer: Option C

Given Expression


= [(|a|+ |b|)2 - 4|ab|], where |a| = 476 and |b| = 424
= [(476 + 424)2 - 4 x 476 x 424]
= [(900)2 - 807296]
= 810000 - 807296
= 2704.



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