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1971 Canadian MO Problems/Problem 4

Revision as of 15:21, 26 July 2006 by 4everwise (talk | contribs) (→‎Problem)

Problem

Determine all real numbers $\displaystyle a$ such that the two polynomials $\displaystyle x^2+ax+1$ and $\displaystyle x^2+x+a$ have at least one root in common.

Solution

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