how would you simplify this square root problem

Question

    2

 _______

(5-√2)

Answer 1

You have to get the irrational out of the denominator first. 

Multiply top and bottom by 5√2(1)

2(5√2)/(5√2)²⁼⁼

(10√2)/25(2)==

(10√2)/50==

(√2)/5