I think school is designed to help poor because it’s for free
Answer:
selling price would be $275.
Answer:
![{x}^{2} + 3x - 10](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%203x%20%20-%2010)
Step-by-step explanation:
![(x + 5)(x - 2)](https://tex.z-dn.net/?f=%28x%20%2B%205%29%28x%20-%202%29)
utilise the Foil method to expand brackets:
F - mulply the first terms (x and x)
O - multiply the outside terms ( x and -2)
I - multiply the inside terms (5 and x)
L - multiply the last terms (5 and -2)
Then add them as following:
![{x}^{2} - 2x + 5x - 10](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%20-%202x%20%2B%205x%20-%2010)
Then combine like terms:
![{x}^{2} + 3x - 10](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%203x%20-%2010)
X = y - 8
Step by step
Y = x + 8
x + 8 = y
-8 -8
x = y - 8