Which expression is not a polynomial
![Which expression is not a polynomial class=](https://us-static.z-dn.net/files/d57/f3b51e0f739ed77191f3fb41b8d20789.png)
Answer:
the last option [tex]x^{3}[/tex] + 1 / x
Step-by-step explanation:
first option's x has the power 3
second option's x has the power 1
third option's x has the power 1
but in the last option it has the power -1
polynomials doesn't support negative power
*remember