(a + b)2 + 2ab
(a + b)2 - 2ab
(a + b)2 + 4ab
(a + b)2 - 4ab
Source: প্রবাসী কল্যান ব্যাংক - অফিস সহায়ক (05-05-2023)
Answer: (a + b)2 - 2ab
Explanation:
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