Re: factorizing polynomial
- To: mathgroup at smc.vnet.net
- Subject: [mg33115] Re: [mg33099] factorizing polynomial
- From: BobHanlon at aol.com
- Date: Sun, 3 Mar 2002 17:15:18 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 3/3/02 6:54:33 AM, niubbo at libero.it writes: >To factor x^4+4 I do this: >I add and subtract 4x^2 to get > >x^4+4+4x^-4x^2=(x^2+2)^2-4x^2=(x^2+2+2x)(x^2+2-2x) > >I CAN do in this way, but how can Mathematica do it automatically? >Somebody knows about skills to factor polynomial like previous and like >x^4+x^2+1? > x^4+4//Factor (x^2 - 2*x + 2)*(x^2 + 2*x + 2) x^4+x^2+1 // Factor (x^2 - x + 1)*(x^2 + x + 1) Bob Hanlon Chantilly, VA USA