SOLUTION: sqrt20/5 - 1/sqrt5 Simplify. Thank you!!!!

Algebra ->  Algebra  -> Square-cubic-other-roots -> SOLUTION: sqrt20/5 - 1/sqrt5 Simplify. Thank you!!!!      Log On

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 106270: sqrt20/5 - 1/sqrt5
Simplify.
Thank you!!!!
Answer by MathLover1(3376) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%2820%2F5%29+-+1%2Fsqrt%285%29
sqrt%2820%29%2Fsqrt%285%29+-+1%2Fsqrt%285%29 .......sqrt%2820%29 we can write as sqrt%284%2A5%29+=+2+sqrt%285%29
2sqrt%285%29%2Fsqrt%285%29+-+1%2Fsqrt%285%29 ..............eliminate sqrt%285%29in first term, and we will have
2+-+1%2Fsqrt%285%29...........common denominator is sqrt%285%29
%282sqrt%285%29-1%29%2Fsqrt%285%29
since sqrt%285%29+=+2.24, we will have
%282%2A2.24-1%29%2F2.24
%282%2A%282.24%29-1%29%2F2.24
%284.48-1%29%2F2.24
3.48%2F2.24
1.4