Question

2 raiz de 24 menos raiz de 54

Answer 1

$2 \sqrt{24} - \sqrt{54}$
$=2 \sqrt{6*2^{2} } - \sqrt{6*3^{2} }$
$=2*2 \sqrt{6} - 3 \sqrt{6}$
$=4 \sqrt{6} -3 \sqrt{6}$
$=(4-3) \sqrt{6}$
$= \sqrt{6}$