Answered

Which operation is NOT closed for polynomials?
A) −(x2 + 4x + 5)(8x2 + 3x + 4)
B) (7x2 + 2x + 3) + (3x2 − 5x + 4)
C) (x2 + 2x + 5) − (x2 − 2x + 9)
D) (x3 + 4x − 5)/(x5 − 2x + 2)

Answer :

D is the answer, Since D is division and polynomials are not closed under division. 
jadaoliver2021

Answer:

The answer is A I took the test on USAtestprep

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