Express x^4 - x in its fully factorise form.
I went through factorising methods:
common factor
difference of two squares X
breaking brackets X
quadratic formula X
polynomial ?
I would say answer = x(x^3 - 1)
But that is way to simple for the level i'm taking, so im asking if polynomials are involved here? If not, what else should i try?
Please don't show me the solution, just answer yes/no.
Thanks