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Quiet Week-end Challenge (49G?) - Closed
05-10-2015, 07:03 PM (This post was last modified: 05-10-2015 07:03 PM by Gerson W. Barbosa.)
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Gerson W. Barbosa Offline
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RE: Quiet Week-end Challenge (49G?)
(05-10-2015 06:42 PM)Gerald H Wrote:  Lagrange' four square theorem does NOT say it's always possible with four evens, nor that it's always possible with four odds.

You are right, but the four unknowns (a, b, c and d) are not the even numbers I was looking for. Their doubles are. Likewise, e, f, g and h are arbitrarily odd or even. When doubled and increased by one they become odd.
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RE: Quiet Week-end Challenge (49G?) - Gerson W. Barbosa - 05-10-2015 07:03 PM
RE: Quiet Week-end Challenge (49G?) - nlj - 05-13-2015, 11:26 AM



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