Respuesta :

Answer:

  x-√6

Step-by-step explanation:

Non-integer powers of the variable disqualifies the expression from being a polynomial. √x -6 has x to the 1/2 power, so that expression is not a polynomial. Polynomials may have any real or complex, rational or irrational coefficients. (We usually study only polynomials with real coefficients.)

  x-√6 is a polynomial