Which of the following demonstrate closure in a polynomial? select all that apply: a.(x^2+2) (x-1) b.(x^2+2) over (x -1) c.(x+1) plus (x^2-3x -2) d.(x + +6) e.4/8x

Any arithmetic operation on polynomials except division* will result in a polynomial. Appropriate choices are ...

A. (x^2+2) (x-1)

C. (x+1) plus (X^2-3X -2)

D. (X +5)-(3X +6)

E. (4/8)x . . . . . but not if you mean 4/(8x)

* For division, the result may be a polynomial. In the specific example given here for B, it is not.

the correct answer is d

hope this