Question

please solve this question​

Answer 1

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Answer 2

$\sf \: 9 {x}^{2} + 6x + 1 \\ \gray{\sf \implies \: {(a + b})^{2} = {a}^{2} + {b}^{2} + 2ab} \\ \sf \implies \: (( {3x})^{2} + ( {1})^{2} ) + 2.3x.1 \\ \red{\sf \implies \: {(3x + 1)}^{2} ....(ans)}$

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