SOLUTION: Solve the equation 2x^3-3x^2-11x+6=0 given that -2 is a zero of the equation

Algebra ->  Equations -> SOLUTION: Solve the equation 2x^3-3x^2-11x+6=0 given that -2 is a zero of the equation       Log On


   

Question 1100539: Solve the equation 2x^3-3x^2-11x+6=0 given that -2 is a zero of the equation
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
2x^3-3x^2-11x+6=0
use -2 and synthetic division
-2/2===-3===-11====6
===2====-7===3=====0
The quadratic left as the quotient is 2x^2-7x+3
factor that into (2x-1)(x-3)=0
x=(1/2), 3, -2
graph%28300%2C300%2C-5%2C5%2C-10%2C10%2C2x%5E3-3x%5E2-11x%2B6%29