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April 18, 2014

April 18, 2014

Posted by **Emily** on Thursday, September 17, 2009 at 1:24am.

List the possible rational zeros of f using the rational zero theorem.

f(x) = 2x^3 - x^2 + 5x + 6

I applied the rational zero theorem, but none of the factors worked :(

- Precalculus -
**Reiny**, Thursday, September 17, 2009 at 7:34amYou are right, it does not factor over the rational numbers.

Try this program

http://www.1728.com/cubic.htm

it shows one real solution, and two imaginary roots.

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