Answer:
0
Step-by-step explanation:
Hope this helps :)
Photo attached.
d
see below
Addition and subtraction are both closed under polynomials.
That means that when we add and subtract polynomials, we will end up with a polynomial
f(x) + g(x) will = always be a polynomial when we start with polynomials
f(x) - g(x) will = always be a polynomial when we start with polynomials
The solution is in the picture
