Monday

September 1, 2014

September 1, 2014

Posted by **Ashley** on Sunday, September 6, 2009 at 8:51pm.

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

- Pre-Calculus -
**Reiny**, Sunday, September 6, 2009 at 11:30pmyou 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 -
**Ashley**, Monday, September 7, 2009 at 12:07amThanks for the help. However, I don't see the webpage you were speaking of.

- Pre-Calculus -
**Reiny**, Monday, September 7, 2009 at 12:10amhow silly of me

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

- Pre-Calculus -
**Ashley**, Monday, September 7, 2009 at 12:13amThanks!

**Related Questions**

Pre-Calc-Please check - Is this correct? Using Rational Roots Theorem, list all...

Pre-Calc-Please check - I have three questions: 1. What is the remainder of (x^3...

Math - How to factor x^3 - 3x^2 + 4 =0 Use D'Alembert's Rational Roots Theorem. ...

algebra - using the rational root theorem to list all possible rational roots of...

Math - Roots Ok, what about roots? Roots of polynomials? Square roots? Cube ...

Pre Calculus - So I only have 3 homework questions left and I can't seem to ...

ALGEBRA 2 - Use the Rational Root Theorem to list all possible rational roots ...

pre-calculus - partial fraction; use the rational roots theorem to factor ...

Pre Calc - Write a quartic function that has roots that are 3+5i, -4 and 7 and f...

Precalculus - "Show that x^6 - 7x^3 - 8 = 0 has a quadratic form. Then find the ...