Verified Answer :

scme1702

A prime polynomial is one that cannot be reduced.
x² - 25 reduced to (x + 5)(x - 5)
3x² - 27 reduces to 3(x + 3)(x - 3)
2x² - 8 reduces to 2(x + 2)(x - 2)

Therefore, 
x² + 9 is prime.

Answer:

x^2+9 is the correct answer.i just took the test on edge

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