What is it i'm confused. its either 2,3,-9,7,or 4.

so, it boils down to the definition of a polynomial.

a polynomial is just a term with coefficients and variables at whatever power, however, it cannot be a rational, namely a fraction.

if we choose any positive exponent or that "x", we'll....let's pick say 3 and 7 just so you see what happens.

so, if we give it any positive exponent, we'll end up with a rational, however  if we give it a negative, like say -9,

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step-by-step explanation: