Defined as the average of a set of numbers
I'd use synthetic div. here, with 2 as my divisor:
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2 / 1 -11 18
2 -18
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1 -9 0
Note that the coefficients of the missing factor are given here and are 1 and -9. Thus, (x-9) is the missing factor.
Answer: 1
Step-by-step explanation: it only goes into 14 once because 8 • 2 =16
