10√2
--------
√5
--------
√5
10√2 √5
------------ {multiplied top and bottom by √5 to eliminating radical sign in denominator}
√5 √5
10√10
--------- {multiplied square roots on top and bottom}
√25
10√10
---------- {evaluated √25 to be 5}
5
= 2√10 {cancelled 10 and 5}
© Algebra House
