Complete the square on both and to put the equation into
form, which is a circle centered at with radius
Rearrange:
Divide the coefficient on the 1st degree term by 2, square the result, and add that result to both sides. Do the same thing with the coefficient on the 1st degree term.
Factor the two perfect square trinomials and collect terms:
Which is a circle centered at with radius
John
My calculator said it, I believe it, that settles it