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प्रश्न
Simplify:
(ab – c)2 + 2abc
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उत्तर
We have,
(ab – c)2 + 2abc = (ab)2 + c2 – 2abc + 2abc ...[Using the identity, (a – b)2 = a2 + b2 – 2ab]
= a2b2 + c2
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