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Mathematics

Find the square of 2a + b.

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Answer

Square of (2a + b) :

⇒ (2a + b)2

⇒ (2a)2 + 2 × 2a × b + b2

⇒ 4a2 + 4ab + b2.

Hence, square of (2a + b) = 4a2 + 4ab + b2.

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