Question

solne it by appropriate identity
( B
(2x+1)
${?}^{2}$

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Answer 1

Answer:

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Answer 2

Answer:

hey we use the identity of (a-b )^3= a^3-b^3-3a^b+3ab^2 so by applying this identity we get (2x)^3-1^3-3 (2x)^+3 (2x)(1)^2