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Question

{(481 + 426)2 - 4 x 481 x 426} = ?
Options:
A .  3025
B .  4200
C .  3060
D .  3210
Answer: Option A

Answer : Option A

Explanation :

(a + b)2 = a2 + 2ab + b2


(a - b)2 = a2 - 2ab + b2


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