Answer:
Which i think is the first one, there may just be a typing error.
Step-by-step explanation:
A polynomial of order n has the following format:

In which a is the leading coefficient,
are the roots.
If a root appears m times, they are said to have multiplicity m.
Leading coefficient of 1 and roots 21 and 31 with multiplicity 1

So the correct answer is:

Which i think is the first one, there may just be a typing error.
Answer:
b
Step-by-step explanation:
Reasoning: the square root of 16 is 4 and 81 square root is 9
so it is b pls give brainliest! have a good day
Answer:
chupas trozon
Step-by-step explanation:
pastilla te entra mi trozon