Question

expand (2a+1) power 2​

Answer 1

Answer:

(2a+1)²

(a+b)² = a²+2ab+b²

therefore,

(2a+1)² = (2a)² + (2×2a×1) + 1²

= 4a²+4a+1

Answer 2

Answer :

(2a +1)^2

= (2a)^2 + 2×2a×1 + 1^2

= 4a ^2 + 4a + 1

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