Question

6+2√21 how to find the value

Answer 1

$\huge{\mathbb{\underline{\green{ANSWER}}}}$

$6 + 2 \sqrt{21} \\ = > 6 + 2 \times \sqrt{3 \times 7} \\ = > 6 + 2 \times 4.58257569 \\ = > 6 + 9.16515138 \\ = > 15.1651514$

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