Question 207313
You're almost there. You can factor out a factor of 3 too
{{{3x^2 * (x^2 - 3xy +y^2)}}}
Since you can't factor the quadratic part simply, I think you are done.

And here's a helper URL for you --> http://72.3.253.76:8080/webMathematica3/quickmath/page.jsp?s1=algebra&s2=factor&s3=basic

That URL can factor stuff - just doesn't show alot of steps. Good for checking your work though!
Hope that helps some and good luck on your test.