Question

Which of the following is a polynomial?

A). x^4 - 2
B). x^-2 - 1
C). (x^6-4)/(x^-5+1)
D). 1/x +2

Answer 1

A). x^4 -2

Explanation:

A polynomial is the sum of constants and variable terms that have positive integer exponents.

A: a polynomial

B: has a term with a negative exponent

C: a rational expression

D: has a term with a negative exponent