Question

divide
$18 \sqrt{21 \: } \: \div 3 \sqrt{7}$
​

Answer 1

$\large{ \bold{ 18 \sqrt{21} = 18 \sqrt{7 \times 3} }} \\ \\ \large{ \bold{ 3 \sqrt{7} }} \\ \\ \mathfrak{now }\\ \\ \large{ \bold{ \frac{18 \sqrt{21} }{3 \sqrt{7} } }} \\ \\ = \large{ \bold{ 6 \sqrt{3} }}$

hope it helps.

Answer 2

$18 \sqrt{21} \div 3 \sqrt{7} \\ = 18 \sqrt{21} \times \frac{1}{3 \sqrt{7} } \\ = 6</em></strong><strong><em> </em></strong><strong><em>\</em></strong><strong><em>sqrt</em></strong><strong><em>3$