Answer: -57
Step-by-step explanation:
Answer:
Step-by-step explanation:
we have
Divide the coefficient of term x by 2
Squared the number
Adds the number 16 to the both sides
Rewrite as perfect squares
take square root both sides
therefore
The solution set is
42 = 7z -21
42-21 = 21
21 / 7 = z
z = 3
The answer would be 8+14 because there are 4 sides not 2
I don’t really know but here’s an example of another one maybe it’ll help