Verified Answer :

mecca99

x2+16 is the prime polynomial.
x2+16 is the only polynomial that couldn't be factored out anymore

x2-36 --> (x-6)(x+6)
x2-7x+12 --> (x-3)(x-4)
x2-x-20 --> (x+5)(x-4)

Answer:

x^2+16

Step-by-step explanation:

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