How do you multiply $sqrt5 * sqrt10$ ?

Question

1475 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-09-15T01:04:37

I get $5sqrt(2)$

You can use a square root only as:
$sqrt(5)sqrt(10)=sqrt(5*10)=sqrt(50)=$
and:
$=sqrt(50)=sqrt(25*2)=5sqrt(2)$

How do you multiply sqrt5 * sqrt10sqrt5 * sqrt10?