Question

Which expressions are polynomials?

Select each correct answer.

x – 1
5x²-√x
6+p
8x-z³

Answer 1

All but the second selection are polynomials.

A square root is the same as a (1/2) power. The variables in a polynomial must all have powers that are positive integers.

Answer 2

Answer:

5x²-√x

Step-by-step explanation:

1)6 +p

2) x-1

3) 8x-z3

4) 5x²-√x   --> has a root so it is not a polynomial