Question 715389
You hope to factor: 6x^3-4x^2-2x
Look for common factors among the terms.  See, 2x.  What you have after reverse of distributive property may still be factorable, too. 




You also hope to factor: x^4-10x^2+9
That is certainly factorable according to what you were trying to do with quadratic trinomials.  Do what you already know.  You see, some number like, t=x^2 ?  You see 9=9*1, 10=-9+(-1) ?