SOLUTION: is x power of 4 + 5/x + 7 a trinomial

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Question 1019342: is x power of 4 + 5/x + 7 a trinomial
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Technically speaking
x^4 + 5/x + 7
is NOT a polynomial, and thus NOT a trinomial. Some texts speak strictly of any three terms constituting a trinomial, but it is certainly not a polynomial.
This is because the middle term has an exponent on the x of -1. It has to be 0,1,2,3, etc...