Question

Which of the expressions are NOT polynomials? Check all that apply.

A. x^2-(square root of x)-3
B. 4 - 3x + 5x^6
C. 5x^1/2 + 4x^2
D. 14x^7
E. x^2-x-12/x+3
F. 8x^10 + 2x^5 ...?

Answer 1

A, C, E are not polynomials

Explanation:

Identify the expressions that are not polynomials

A. x^2-(square root of x)-3

Polynomial cannot have a square root. so it is not polynomial

B. 4 - 3x + 5x^6

C. 5x^1/2 + 4x^2

A polynomial does not have fractional exponent

D. 14x^7

E. x^2-x-12/x+3

Polynomial cannot have x in the denominator

F. 8x^10 + 2x^5

Answer 2

the expressions that are NOT polynomials
A. x^2-(square root of x)-3
C. 5x^1/2 + 4x^2
E. x^2-x-12/x+3
(method: check polynomials lesson)