Tuesday

December 1, 2015
Posted by **julez** on Saturday, October 29, 2011 at 7:34pm.

2x^3-3x^2-14x+15=0

- college algebra -
**Damon**, Saturday, October 29, 2011 at 7:56pmI can see right off that x = 1 works

2-3-14+15 = 0 sure enough

so divide by (x-1)--> 2x^2-x-1

(2x+1)(x-1)

so x = 1 again and x = -1/2