A polynomial s is shown.
5x5 - 0.5x3 + 4
Which of the following can be added to s to demonstrate the closure of polynomials under addition?
2x5 + 7x3 - 12
4x1 - 6x2 + 7
3x9 + 2x=3 - 7
7x6 - 4x1/2 + 10
The polynomial s is of degree 5, so we need to find a polynomial of degree 5 that can be added to s.
The correct option is 2x^5 + 7x^3 - 12 since it also has a degree of 5.