AW: New user with a problem, Can anyone help?

• To: mathgroup at smc.vnet.net
• Subject: [mg33212] AW: [mg33191] New user with a problem, Can anyone help?
• From: Matthias.Bode at oppenheim.de
• Date: Sat, 9 Mar 2002 03:19:32 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Hello,

Solve[{409 - 166*x + 17*x^2 - 218*y + 92*x*y - 10*x^2* y + 34*y^2 -
16*x*y^2 + 2*x^2* y^2 == 0, 23 - 5*x - 8*y + 2 == 0}, {x, y}]

does the job.

Have fun with MATHEMATICA; it is by far more enticing than any conceivable
(computer) game.

Best regards,
Matthias Bode
Sal. Oppenheim jr. & Cie. KGaA
Koenigsberger Strasse 29
D-60487 Frankfurt am Main
GERMANY
Tel.: +49(0)69 71 34 53 80
Mobile: +49(0)172 6 74 95 77
Fax: +49(0)69 71 34 95 380
E-mail: matthias.bode at oppenheim.de
Internet: http://www.oppenheim.de

-----Ursprungliche Nachricht-----
Von: royjmckee at aol.com [mailto:royjmckee at aol.com]
Gesendet: Donnerstag, 7. Marz 2002 08:24
An: mathgroup at smc.vnet.net
Betreff: [mg33191] New user with a problem, Can anyone help?

Currently doing a homework exercise and stuck on a question.

Question:
Find all values of x and y for which both
409 - 166x + 17x^2 - 218y + 92xy - 10x^2 y + 34y^2 - 16xy^2 + 2x^2 y^2
and
23 - 5x - 8y + 2
are equal to zero.

Hence find expressions a and b (involving x and y) such that these two
expressions are equal to a^2 + b^2 and a + b, respectively.

Can anyone help or give any hints as I am struggling to grasp this question?

Please email me at roymckee at hotmail.com

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