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.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled