help: rewriting a fraction a/b==c/d + e/f

*To*: mathgroup at smc.vnet.net*Subject*: [mg31000] help: rewriting a fraction a/b==c/d + e/f*From*: kroosu at tref.nl (Okke)*Date*: Mon, 1 Oct 2001 02:44:25 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

hello, i'm trying the mathematica demo by doing some basic mathematics. now i'm stuck at rewritting a fraction. could somebody please help me by telling me how to rewrite: 1/((x-1)(x^2+x+1)) to A/(x-1) + (Bx+C)/(x^2+x+1) or do i have to do that manualy? and can mathematica find the values for A, B and C ? Solve[eqn1==eq2,{A}] doesnt solve the problem, and subsituting x with 1 doesnt either. tia, -- Okke <kroosu at tref.nl>

**Follow-Ups**:**Re: help: rewriting a fraction a/b==c/d + e/f***From:*Daniel Lichtblau <danl@wolfram.com>