Question

is root 2 a polynomial

Answer 1

yes it is a polynomial

Answer 2

polynomial mean An expression that can have constants (like 4), variables (like x or y) and exponents (like the 2 in y2), that can be combined using addition, subtraction, multiplication and division, but: • no division by a variable.
The square root of 2 is a number. Apolynomial is an expression in a variably, x, consisting of sums of multiples of non-negative powers of x.Root 2 is not a polynomial . They are different sorts of things.