Respuesta :

sqdancefan
Selections 2, 3, 5, 6 are polynomials.

1 and 4 are not. The coefficients don't have to be integers, but the powers of the variables need to be positive integers. In 1, you have x^-1. in 4, you have x^(1/2).

Answer:

b,c,e,f just did it trust me

Step-by-step explanation: