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1987 AHSME Problems/Problem 28: Revision history

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31 March 2018

25 June 2016

23 October 2014

  • curprev 07:5407:54, 23 October 2014 Timneh talk contribs 548 bytes +548 Created page with "==Problem== Let <math>a, b, c, d</math> be real numbers. Suppose that all the roots of <math>z^4+az^3+bz^2+cz+d=0</math> are complex numbers lying on a circle in the complex pla..."
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