Answer:
n²-7n-21
Explanation:
Given the expression:

First, open the brackets:

Next, bring the like terms together and simplify:

My answered came at B I’m not sure though but I hope it is correct!!
Answer:
46
Step-by-step explanation:
By arranging the numbers from least to greatest, you can find the median by locating the central number in the data set.
Answer:
B. 4√3
Step-by-step explanation:

4^4 * 4^(-9) = 4^(4-9) = 4^(-5) or 1/(4^5)