Question

Q2.
Which of the following expressions is a polynomial?
a) √x-1
b)x-1 / x+1
c) x² - 2/x²+5
d) x² + 2x⅔/ √x +6​

Answer 1

none of these are polynomials

a) cannot be a polynomial because √x = x½ and the power of the variable is not a whole number.

b) cannot be a polynomial because x is in denominator so and can be written as x^-1.

c) again, cannot be a polynomial because x is in denominator so and can be written as x^-1.

d) cannot be a polynomial because power of x is ⅔ (x⅔) which is not a whole number.

the question may be wrong

hope it helped:))

Answer 2

None of the expression isn't a polynomial