Pre-Calculus

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Hello, I have tried solving this using the rational roots theorem and none of the roots seem to be working. I'm trying to figure out where I went wrong.

3x^3 -2x^2 - 7x - 4 = 0

  • Pre-Calculus -

    you are right, it does not factor over the rational numbers.

    here is a webpage that solves cubics for you, just enter the constants

    it gave me 1 irrational root and 2 complex roots.

  • Pre-Calculus -

    Thanks for the help. However, I don't see the webpage you were speaking of.

  • Pre-Calculus -

    how silly of me

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

  • Pre-Calculus -

    Thanks!

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