Question

Make y the subject
x=a-2by^2

Answer 1

y =
`√(-(x-a)/2b)`

Explanation:

x = a - 2by^2

First, subtract a from both sides:

x - a = - 2by^2

Then, divide both sides by -2b:

-(x-a)/2b = y^2

Finally, square root both sides:

y =
`√(-(x-a)/2b)`