Question

Solve : $3\sqrt{25\times 6\times 30\times 6}$

Answer 1

$3\sqrt{25\times 6\times 30\times 6}$

$=3\sqrt{(5{)}^2\times (6{)}^2\times 2\times 3\times 5}$

$=3\times 5\times 6\sqrt{2\times 3\times 5}$

$=90\sqrt{30}$