Helllp please
Can you please tell me how to do this question

。☆✼★ ━━━━━━━━━━━━━━ ☾
x = a - 2by^2
- a
x - a = -2by^2
/-2b
(x - a)/-2b = y^2
square root it:
y = √(x - a)/-2b
(note : everything is inside the square root)
Have A Nice Day ❤
Stay Brainly! ヅ
- Ally ✧
。☆✼★ ━━━━━━━━━━━━━━ ☾