Question 98282
{{{x^2 + 2x + y^2 + 22 = 0}}} Start with the given equation



{{{x^2 + 2x + y^2= -22}}} Subtract 22 from both sides



Take half of 2 to get 1. Now square 1 to get 1.



{{{x^2 + 2x +1+ y^2= -22+1}}} Add the result 1 to both sides



{{{x^2 + 2x +1+ y^2= -21}}} Combine like terms




Here's where we run into problems. The right side number represents the radius of the circle. However, a negative number does not work for the radius (a length doesn't make sense). So check your problem again and make sure you entered your problem correctly.