Question

Efetue a divisão
$30 \sqrt{15} \div 5 \sqrt{3}$

Answer 1

$30 \sqrt{15} \div 5 \sqrt{3} = \\ \\ 30 \sqrt{15} \div 5 \times \sqrt{3} = \\ \\ \frac{30 \sqrt{15} }{5} \times \sqrt{3} = \\ \\ 6 \sqrt{15} \times \sqrt{3} = \\ \\ 6 \sqrt{15 \times 3} = \\ \\ 6 \sqrt{45} = \\ \\ 6 \sqrt{ {3 }^{2} \times 5} = \\ \\( 6 \times 3) \sqrt{5} = \\ \\ 18 \sqrt{5}$
ok

Answer 2

$\frac{30 \sqrt{15} }{5 \sqrt{3} } =6 \sqrt{5} \\\\\ 30~divido~5=6\\ \sqrt{15} ~divido \sqrt{3} = \sqrt{5}$