3(square root of)18 + square root of 2.

How would I solve this problem, preferably making the numbers after the square root sign the same?

P.S: Is there a way to do the square root sign on the computer?

3√18 + √2

= 3(3√2) = √2
= 10√2

on my PC I hold down the ALT key, type 251 in the keypad, then release the ALT key
on a Mac, hold down the Option key while pressing the V key