Question

Which expressions are polynomials?

Select each correct answer.

A.20x² + y
B.20x2+y12
C.20x2y
D.20x²

Answer 1

Hi!

All the given answers are polynomials
A.20x² + y
B.20x*2+y*12
C.20x*2*y
D.20x²

Answer 2

Explanation:

Polynomial :

An expression that can have constants (like 4), variables (like x or y) and exponents (like the 2 in
`y^(2)`), that can be combined using addition, subtraction, multiplication and division, but:

no division by a variable.

a variable's exponents can only be 0,1,2,3,... etc.

it can't have an infinite number of terms.

Thus according to definition all are polynomials

A.20x² + y

B.20x2+y12

C.20x2y

D.20x²