Math
posted by Lindsay on .
The equation of a circle is x^26x+y^2+2y=15
what is the center and the radius?

factor it as perfect squares
x^26x + 9 + y^2+2y + 1= 15+9+1
(x3)^2 + (y+1)^2=25
so center is 3,1 and radius is 5 
oops, center 3,1