Which of the following examples demonstrate closure for polynomials? Select all that apply.
(x^2 + 2)(x - 1)
(x^2 + 2)/(x - 1)
(x + 1) + (x^2 - 3x - 2)
(x + 5) - (3x + 6)
4/8x
1 answer
The examples (x^2 + 2)(x - 1) and (x + 1) + (x^2 - 3x - 2) demonstrate closure for polynomials.