Question

find 2√21+6 first of all you have to find √21 and then multiply by 2 and add 6

Answer 1

Heya User, Here is your Answer

$2 \sqrt{21} + 6 \\ \sqrt{21} = 4.58258 \\ 2 \times 4.58258 + 6 \\ 9.16516 + 6 \\ 15.16516$
Hope it will help you