Solve the equation for y (Y-3) ^2=4y-12

If you would like to solve the equation for y, you can do this using the following steps:

(y - 3) ^2 = 4y - 12

y^2 - 6y + 9 - 4y + 12 = 0

y^2 - 10y + 21 = 0

(y - 7) * (y - 3) = 0

1. y = 7

2. y = 3

The correct result would be y = 7 or y = 3.