SOLUTION: I have to simplify this; sqrt20/5-1/sqrt5 I keep coming up with that this cannot be simplified, am I on the right track. my result is =15sqrt5/100 please help

Algebra ->  Square-cubic-other-roots -> SOLUTION: I have to simplify this; sqrt20/5-1/sqrt5 I keep coming up with that this cannot be simplified, am I on the right track. my result is =15sqrt5/100 please help      Log On


   

Question 87505This question is from textbook algebra
: I have to simplify this; sqrt20/5-1/sqrt5
I keep coming up with that this cannot be simplified, am I on the right track.
my result is
=15sqrt5/100
please help This question is from textbook algebra

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%2820%2F5%29-1%2F%28sqrt%285%29%29
sqrt%284%29+-+%281%2F%28sqrt%285%29%29%29%2A%28%28sqrt%285%29%29%2F%28sqrt%285%29%29%29+
2+-+%28sqrt%285%29%29%2F5

This can also be written with a common denominator of 5:
%2810-sqrt%285%29%29%2F5

R^2 Retired from SCC