Using synthetic division, the number 3 is used to multiply each term that is dropped down or added.
The multiplier is the zero of the divisor.
In this problem, the divisor is x - 3, hence:
x - 3 = 0 -> x = 3.
The number 3 is used to multiply each term that is dropped down or added.
More can be learned about synthetic division at https://brainly.com/question/24662212
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