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IBPS RRB Officer Scale 1 Model Paper 5

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Question : 47

Total: 199

Four of the following are equal. Find out the 5th one which is not equal to remaining.

a2+b2−4ab
(a+b)2−6ab
(a−b)2−2ab
a(a+b)+b(b−2a)−3ab
(a−b)a−b(a−b)a−b

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