Answer:
answer is a . x²-8x+16=32
x²-8x=32-16
For this case we must simplify the following expression:
![x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2](https://tex.z-dn.net/?f=x%20%5E%202-3xy-5xy-7y%20%5E%202%20%2B%204x%20%5E%202%20%2B%208y%20%5E%202)
We must add similar terms taking into account that:
- Equal signs are added and the same sign is placed.
- Different signs are subtracted and the major sign is placed.
![(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=%28x%20%5E%202%20%2B%204x%20%5E%202%29%20%2B%20%28-%203xy-5xy%29%20%2B%20%28-%207y%20%5E%202%20%2B%208y%20%5E%202%29%20%3D%5C%5C5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Thus, the simplified expression is:
![5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Answer:
![5x ^ 2-8xy + y ^ 2](https://tex.z-dn.net/?f=5x%20%5E%202-8xy%20%2B%20y%20%5E%202)
Isn’t there supposed to be a picture?
Answer:
y = 12x + 8
Step-by-step explanation:
You can come to this conclusion by plugging in the amount of tickets bought as x in each equation, making sure the the answer y is $56 if x = 4 and $80 if x = 6