Question

Which of the following shows that polynomials are closed under addition when two polynomials 4x2 − 8x − 7 and −5x + 16 are added?
4x2 − 13x + 9 may or may not be a polynomial

4x2 + 13x − 23 may or may not be a polynomial

4x2 − 13x + 9 will be a polynomial

4x2 + 13x − 23 will be a polynomial

Answer 1

Answer:

the answer is C.

4x2-13x+9 will be a polynomial

Step-by-step explanation:

it was right on my test hope this helps byeeeeeeeeee

Answer 2

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Among the choices the one that  shows that polynomials are closed under addition when two polynomials 4x2 − 8x − 7 and −5x + 16 are added is 4x2 − 13x + 9 will be a polynomial