State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.

f(x) = 1 +14/x

option 

1. Yes; degree 14

2.No; x is raised to a negative power

3. Yes; degree 1

4.Yes; degree 0

Solve the equation in the real number system.

x³ + 3x² - 6x - 8 = 0

option

1.{1, 4}

2.{-2, 1, 4}

3. {-4, -1}

4.{-4, -1, 2}