A)4/x+x/7

B)x^-4

C)-4/7

D)x^2-4+7x

A)4/x+x/7

B)x^-4

C)-4/7

D)x^2-4+7x

Tutors, please sign in to answer this question.

A and B are not polynomials because they each include one term that has a negative exponent

(Note: 4/x = 4x^{-1}).

C and D are polynomials (C is constant, D is quadratic).

Answer: B), since the exponent cannot be negative for a polynomial.

Amaan M.

Math/Economics Teacher

New York, NY

5.0
(68 ratings)

Mary L.

K-12 Math tutor

New York, NY

5.0
(65 ratings)

Lynda E.

Master Math and Physics Tutor

Glen Ridge, NJ

5.0
(68 ratings)