Question
106 x 106 - 94 x 94 = ?
Answer: Option A
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106 x 106 - 94 x 94
= (106)2 - (94)2
= (106 + 94)(106 - 94) [Ref: (a2 - b2) = (a + b)(a - b)]
= (200 x 12)
= 2400.
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