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#1 2009-04-04 17:03:20

1a2b3c2212
Member
Registered: 2009-04-04
Posts: 419

Prove that α^4=57α+70

Please help with this math problem.

The quadratic equation x²=3x+5 has roots  α and β. Prove that α^4=57a+70. This can be solved without solving for any unknown.

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#2 2009-04-05 00:59:24

JaneFairfax
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Registered: 2007-02-23
Posts: 6,868

Re: Prove that α^4=57α+70

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#3 2009-04-05 01:54:53

1a2b3c2212
Member
Registered: 2009-04-04
Posts: 419

Re: Prove that α^4=57α+70

Thanks!

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