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Algebra
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 The polynomial p(x) = x5 − 9x+ 13x3 + 57x2 − 86x − 120 has a total of zeroes. It can have a maximum of positive real roots and a maximum of negative real roots.

Mar 19th, 2015

Since it is 5th order polynomial it has a total of 5 zeroes.

Using Descartes' Rule of Signs,

It can have a maximum of 3 positive real roots

and a maximum of 2 negative real roots

Mar 19th, 2015

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Mar 19th, 2015
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