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Question
Using suitable identities, evaluate the following.
(52)2
Sum
Solution
We have,
(52)2 = (50 + 2)2
= (50)2 + (2)2 + 2 × 50 × 2 ...[Using the identity, (a + b)2 = a2 + b2 + 2ab]
= 2500 + 4 + 200
= 2704
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 233]
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