Find the Domain (x+1)^2+(y-4)^2=4

Subtract from both sides of the equation.
Take the square root of each side of the equation to set up the solution for
Remove the perfect root factor under the radical to solve for .
Simplify the right side of the equation.
Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Simplify.