Re: rationalize numerator of quotient
- To: mathgroup at smc.vnet.net
- Subject: [mg81138] Re: rationalize numerator of quotient
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 14 Sep 2007 03:26:35 -0400 (EDT)
- Organization: Uni Leipzig
- References: <fcb3ok$fjj$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi Murray, expr = (Sqrt[x] - 2)/(x - 4); Factor[expr, Extension -> Sqrt[2]] Regards Jens Murray Eisenberg wrote: > I have a quotient such as: > > (Sqrt[x] - 2)/(x-4) > > I want to "rationalize the numerator" by multiplying numerator and > denominator each by Sqrt[x] + 2 so as to obtain result: > > 1/(Sqrt[x]+2) > > How? >