Question

Please help me with this !!

Answer 1

The choice four;

`5 √(3)`

__o___o___

`√(5) * √(15) \\ √(5) * √(5) √(3) \\ = 5 √(3)`

I hope I helped you^_^

Answer 2

Let's solve this,

= √5 . √15

• "." here means multiply, am sure u know

= √5 × √3 × 5

• constituent of 15 is 3 × 5

= √5 × 3 × 5

• "√" can be taken common
• as there is a pair of 5, which means it is a square we can take it out of the sqaure root.

= 5√3

And our answer is done, option 5√3! :P