Which of the following expressions is not a polynomial? (IN description) The stars indicate that the number after them is an exponent.

Question

Question 1 options:

a)
3x


b)
3x - 4


c)
3x*3 − x*2 

d)
3x*−2 + x

Answer 1

d) 3x^-2+x is not a polynomial because a polynomial can't have division by a variable

    3x^-2+x=3/x²+x and x² is in the denominator