Question

Make y the subject of this formulae X=a-2by^2

Answer 1

Answer:

y = ± $\sqrt{\frac{(a-x)}{2b}}$

Step-by-step explanation:

x = a - 2by²

Take -2by² to the left side.

x + 2by² = a

Take x to the left side.

2by² = a - x

Divide both sides by 2b.

y² = $\frac{(a-x)}{2b}$

Now remove the y square.

y = ± $\sqrt{\frac{(a-x)}{2b}}$

Answer 2

Answer:

See below

Step-by-step explanation:

x=a-2by^2   Subtract 'a' from both sides

x -a = - 2 by^2     divide both sides by - 2b

(a-x)/2b = y^2    sqrt both sides

y =  +- sqrt ( (a-x)/2b))