Solve this problem , no clue  TOPIC_SOLVED

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Solve this problem , no clue

Postby Translucent on Thu Jan 09, 2014 1:57 am

Solve 15x^3 + 14x^2 - 3x - 2 = 0 given that -1 is a zero.
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Re: Solve this problem , no clue  TOPIC_SOLVED

Postby theshadow on Thu Jan 09, 2014 2:27 am

Translucent wrote:Solve 15x^3 + 14x^2 - 3x - 2 = 0 given that -1 is a zero.

use like they show here: http://www.purplemath.com/modules/solvpoly.htm
start with the zero they give you: do the synthetic division with x=-1
then do the quadratic formula for the other two zeros
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