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May 22, 2015

Homework Help: Cubic Equations

Posted by Belinda on Sunday, January 8, 2012 at 6:56pm.

I have three that I need help with if possible.
1. Solve 2x^3 - 3x^2 = 6x - 9
2. Find all real and imaginary roots of the polynomial equation 3x^4 - x^3 + 4x^2 - 2x - 4=0
3. Find a cubic equation with integral coefficients and roots 3i and -5.

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