please help! sort the equations by whether they are polynomial or not (picture attached)

Please Help Sort The Equations By Whether They Are Polynomial Or Not Picture Attached class=

Answer :

Answer: 5/x3-1/x2+8/x-40 is not polynomial. The rest are polynomial.

Step-by-step explanation:

Polynomials cannot have a number divided by a variable so 5/x3-1/x2+8/x-40 can't be a polynomial.

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