The middle term to make this polynomial factorable (x + 10)(x + 2) will be 12x. Then the correct option is A.
What is a factorization?
It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.
The possible middle term to make this polynomial factorable will be
⇒ x² + 12x + 20
⇒ x² + 10x + 2x + 20
⇒ x(x + 10) + 2(x + 10)
⇒ (x + 10)(x + 2)
Then the correct option is A.
More about the factorization link is given below.
https://brainly.com/question/6810544
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