SOLUTION: How do you factor 2X^3 minus 5X minus 3?

Question 347427: How do you factor 2X^3 minus 5X minus 3?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Well, by looking at it, I can see that x = -1 is a root, so (x+1) is a factor...
If you divide it by x+1 you get,
2x^2 - 2x - 3
wich isn't directly factorable...you'd use the quadratic here...
so that x =
and the answer factored appears to be
(x + 1)(x + (1+sqrt(7)/2)(x - (1+sqrt(7)/2)
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