Which of the following is a factor of x2 − 21x + 110?
x+11
x-10
x-5
none of the above

Option B is correct. (x-10)

Step-by-step explanation:

The given term is =

Now, to know the factors of this term, we will split 110 in a way that the factors sum upto 21.

So, 110 can be split as and the sum of 11 and 10 is 21.

Now, we will split the whole term as ;

So, the factors of are : (x-11) and (x-10)

Therefore, out of the given options, option B is correct.

goog may have it for you