Hello Forum I was asked to Give non-trivial examples of functions that are and are not polynomials.

I said the following : What I find to be helpful when making this distinction is to remember, A polynomial function(fx) is a function in the form a^x + b^x-1+c^x-2+... where x is any integer. In a case where you have just a^x and x=0(hope you know 0 is an integer) you get a^0=1 which is a constant. So any other criteria that does not satisfy this conditions is not a polynomial function.

Can anyone help me explain this better I am having trouble explaining myself clearly here thanks..