Question

Choose the correct simplification and demonstration of the closure property given: (2x3 + x2 − 4x) − (9x3 − 3x2).

−7x3 + 4x2 − 4x; may or may not be a polynomial
−7x3 + 4x2 − 4x; is a polynomial
11x3 − 2x2 − 4x; may or may not be a polynomial
11x3 − 2x2 − 4x; is a polynomial

Answer 1

am i right w B?

Answer 2

In my opinion, I feel like it could be A or B

Answer 3

The first part of it
... is right but i'm not so sure with the second part

Answer 4

I think it might be A

Answer 5

I think you could be right @gucchi

Answer 6

thank you