look at the picture that is attached
help me plz
![look at the picture that is attached help me plz class=](https://us-static.z-dn.net/files/d1c/2551a7e8e0fcec73a8f0b7630886b2c9.jpg)
Answer:
x² = 30 - (y-5)²
x² = 30 - [y² - 10x + 25]
x² = 30 - y² + 10x - 25
x² = -y² + 10x + 5
B