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Mathematics, 19.12.2020 06:00 avery8626
All the roots of
\[x^2 + px + q = 0\]are real, where $p$ and $q$ are real numbers. Prove that all the roots of
\[x^2 + px + q + (x + a)(2x + p) = 0\]are real, for any real number $a.$
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All the roots of
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