What are the coordinates and radius of the circle whose equation is x raise to power 2 plus y raise to power 2 minus 2x minus 4y minus 4 equal to zero.

The coordinates of the center of the circle are (1,2). The radius of the circle is 3.

ever think of just typing the math? All those words are just annoying.

x^2 + y^2 - 2x - 4y - 4 = 0
x^2-2x + y^2-4y = 4
x^2-2x+1 + y^2-4x+4 = 4+1+4
(x-1)^2 + (y-2)^2 = 3^2
hence the bot's unusually correct answer above.