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प्रश्न
Simplify: (a + b)2 – 4ab
बेरीज
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उत्तर
(a + b)2 – 4ab = a2 + b2 + 2ab – 4ab
= a2 + b2 – 2ab
= (a – b)2
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पाठ 3: Algebra - Exercise 3.1 [पृष्ठ ६२]
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