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1. a28a-8b+16+b2

Answer: Option A

Explanation:

a^{2} - 8 a - 8 b + 16 + 6^{2} = a^{2} + b^{2} + {(+ 4)}^{2} + 2 . a (- 4) + 2 . b (- 4) = a^{2} + b^{2} + {(- 4)}^{2} + 2 a b + 2 . a (- 4) + 2 . b (- 4) (A n s . 2 a b)

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