That would be the median....u need to list the numbers in order to find the middle number (median)
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
The answer is 5z or 5xz Product is just a word for multiply
