Question

Please I need help on this thanks

Answer 1

we know that

An polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable

option-A:

$8x-z^3$

since, there are two variables

so, this can not be polynomial

option-B:

$x-1$

Since, there is a only one variable

so, this is a polynomial

option-C:

Since, there is sqrt

and in polynomial exponent can not be fraction

so, this is not polynomial

option-D:

$6+p$

since, there is only one variable

so, this is polynomial