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**tony123****Member**- Registered: 2007-08-03
- Posts: 189

Determine all real numbers

that satisfy the following system ofequations.

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

Rewrite the second, third and fourth equations as

Now multiply these equations by

, and respectively.Now notice that

Hence we have

Thus we get these two inconsistent equations

Solve the first cubic for *a* and use it to find *d*.

*Last edited by JaneFairfax (2008-07-21 10:26:45)*

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