Question

5 is a polynomial or not​

Answer 1

Answer:

Yes, "5" is a polynomial, one term is allowed, and it can be just a constant.

Answer 2

Answer:

(Yes, "5" is a polynomial, one term is allowed, and it can be just a constant!) 3xy-2 is not, because the exponent is "-2" (exponents can only be 0,1,2,...)