SOLUTION: simplify: square root of 20 + the square root of 80 - the square root of 125 I got to this point: (2 square root of 5) + (4 square root of 5) - (5 square root of 5) but

Algebra ->  Radicals -> SOLUTION: simplify: square root of 20 + the square root of 80 - the square root of 125 I got to this point: (2 square root of 5) + (4 square root of 5) - (5 square root of 5) but      Log On


   



Question 93109: simplify:
square root of 20 + the square root of 80 - the square root of 125
I got to this point:
(2 square root of 5) + (4 square root of 5) - (5 square root of 5) but I don't remember what to do next. Thanks so much!!

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Good job!
Now, just combine like-terms, that is, combine all of the constants that have the same radicand of %28sqrt%285%29%29 ]
.
.
%282sqrt%285%29%2B4sqrt%285%29-5sqrt%285%29%29
%281sqrt%285%29%29
or
%28sqrt%285%29%29