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1990 AHSME Problems/Problem 19: Revision history

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  • curprev 16:0516:05, 29 September 2014 Timneh talk contribs 467 bytes +467 Created page with "== Problem == For how many integers <math>N</math> between <math>1</math> and <math>1990</math> is the improper fraction <math>\frac{N^2+7}{N+4}</math> <math>\underline{not}</m..."
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