Re: express a quadratic, in the form (x+a)^2 + b
- To: mathgroup at smc.vnet.net
- Subject: [mg84351] Re: express a quadratic, in the form (x+a)^2 + b
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 20 Dec 2007 00:03:11 -0500 (EST)
- References: <fkan3b$d6k$1@smc.vnet.net>
Hi, x^2 + 4 x + 7 /. x^2 + b_*x + c_ :> Factor[x^2 + b*x + b^2/4] - b^2/4 + c Regards Jens Joseph Fagan wrote: > I'm a Mathematica beginner. > I wish to express a quadratic, in the form (x+a)^2 + b > eg to express x^2 + 4x + 7 as (x+2)^2 + 3 > Is there an easy way? > Thanks > Joe > > >