What does this mean?????

Explain why the polynomial is or is not closed over addition or subtraction based on the problem provided.

Question

What does this mean????? 

Explain why the polynomial is or is not closed over addition or subtraction based on the problem provided.

barrelracer011 · Answer

My 4 problems are Addition: 5x^2 + 8x-4 + 3x^2- 4x

		     2x^3 + 4x + 10x^4 -8

Subtraction: 8x^3-4x + 2x^2-7x

			  7x^5 - 3x + 6x^2 - 5x

beccaboo333 · Answer

Hey! You seem like you're familiar with this site, based on your SS. You may want to reask this in the mathematics section. You'd have much more help there.

barrelracer011 · Answer

I did post it in the math section lol.