Answer:
3[tex] \sqrt{10} [/tex]
Explanation:
Before we begin, remember the following:
[tex] \sqrt{x} * \sqrt{y} = \sqrt{x*y} = \sqrt{xy} [/tex]
Now, for the given, we have:
3[tex] \sqrt{5} * \sqrt{2} [/tex]
Applying the above rule, we would get:
[tex]3 \sqrt{5} * \sqrt{2} = 3 \sqrt{5*2} = 3 \sqrt{10} [/tex]
Since [tex] \sqrt{10} [/tex] cannot be reduced into any other form, therefore, 3√10 would be our final answer.
Hope this helps :)
