You can put this solution on YOUR website! x^4 + 2x3 - 3x - 6 (Factor Competely)
---------------------------
Factor the 1st two and the last two terms separately to get:
x^3(x+2) -3(x+2)
Factor again to get:
=(x+2)(x^3 - 3)
=================
Cheers,
Stan H.