Question

$15 \sqrt{50}$ : $3 \sqrt{2}$

Answer 1

Descompui cu bara 50
si 50= 5√2
si dupa ai : 15·5√2:3√2=75√2:3√2=25√2 

Answer 2

$15 \sqrt{50} :3 \sqrt{2} =15 \sqrt{2*25} :3 \sqrt{2} =15* \sqrt{2}* \sqrt{25} :3 \sqrt{2}=$$15*5* \sqrt{2}:3 \sqrt{2} =75 \sqrt{2} :3 \sqrt{2} =25$