Question

2a plus 1 the whole square​

Answer 1

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${(2a + 1)}^{2}$

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${(2a + 1)}^{2} \\ by \: using \: identity \\ {(a + b)}^{2} = a {}^{2} + {b}^{2} + 2ab \\ = 4a {}^{2} + 1 + 2a$

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Answer 2

9..is your ans...

..ok sty