use the rational zeros theorem to find all real zeros

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use the rational zeros theorem to find all real zeros

Postby diannebrewer on Tue Apr 01, 2014 9:58 pm

use the rational zeros theorem to find all real zeros of the polynomial function and use the zeros to factor f over the real numbers. f(x)=11x^3-x^2+11x-1
x=
fx=
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Re: use the rational zeros theorem to find all real zeros

Postby theshadow on Wed Apr 02, 2014 1:12 am

diannebrewer wrote:use the rational zeros theorem to find all real zeros of the polynomial function and use the zeros to factor f over the real numbers. f(x)=11x^3-x^2+11x-1

They show how to do this here. Start with the Rational Zroes Thm to get the potential roots: +/- (1/11) so 1, 1/11, -1, -1/11. Try the easy ones first: 1, -1. As soon as you find one root, then do the Quadratic Thm to what's left.

Plz write back if you get stuck. Thnx.
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