Graph of a polynomial function

Describe, in your own words, that if the real zeros of a polynomial function occur in mutiplicity *k, *and *k is even,* then the graph touches (but does not touch) the x-axis at x = a, where x is a real zero of the given function.(Speechless)

I'm having trouble here guys. Anything you could say on the matter would help. Thanks.

Oh, by the way, when I say mutiplicity, I mean how many times x=a appears as a factor. E.G. in the polynomial x^2 + 2x + 1 = 0 , when factored we have (x + 1)(x + 1) = 0

and the roots are x = -1 and x = -1 again so this

has a root of even multiplicity and therefore the graph touches the x-axis but does not cross it at x = -1.

**Does anyone know what I'm talkin' about?!**