Which expressions are polynomials?
Select each correct answer.
6 + w
2x4−y
z + 1
y2−y√3+4

The expressions which are polynomials are;
A polynomial by definition is an expression which is composed of variables, constants and exponents, which are combined using the mathematical operations including addition, subtraction, multiplication and division.
On this note, all of expressions are polynomials.
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