Re: Expanding a Square Root

*To*: mathgroup at smc.vnet.net*Subject*: [mg50827] Re: Expanding a Square Root*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Wed, 22 Sep 2004 04:52:05 -0400 (EDT)*Organization*: Universitaet Leipzig*References*: <ciqvh5$ilb$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de*Sender*: owner-wri-mathgroup at wolfram.com

Hi, Sqrt[3799 + 792*Sqrt[23]] // FullSimplify ??? Regards Jens Jim Dars wrote: > > Hi All, > > I should point out that I use Mathematica 4.0 infrequently, thus I may be > missing the obvious. My problem is as follows: > > In the following I use the square root sign from the palette for SQRT > Expand[(44+9*SQRT(23))^2] yields > 3799 + 792*SQRT(23) > > I now wish to take the square root of 3799 + 792*SQRT(23) to return to my > original expression. However > > Expand[SQRT(3799 + 792*SQRT(23))] merely yields > > [SQRT(3799 + 792*SQRT(23))] > > What is the proper command to make SQRT(3799 + 792*SQRT(23)) yield > 44+9*SQRT(23) > > Best wishes, Jim