Question

Which expressions are polynomials?

Select each correct answer.

Answer 1

1. Polynomials are:

A ) 7 x^7 - x - 5

C ) 4 x + √ x - 1

D ) x/5 + 2

2. Polynomials are:

A ) x² - x √2

C ) 2 + s

D ) 4 x³ + y

3. The polynomial: - 5 x³ - 4 x + 1 is:

C ) Cubic trinomial.

4. The degree of the polynomial: - 2 x² y^4 - 1/2 z is:

C ) 4

Explanation:

Answer 2

Option A and D

Explanation:

A polynomial is the combined form of expression that contains variables, operations and exponents. It cannot be divided by a variable.Polynomial does not have fractional exponent.

Option A is a polynomial because it contains variables x and y and operators like + and division

Option B is not a polynomial because it have x in the denominator . Polynomial cannot be divided by a variable.

Option C is not a polynomial because it has a fractional exponent 1/3

Option D is a polynomial because it contains variables x and y