Respuesta :

jbmow
x^2 + y^2 + 8x – 6y + 21 = 0
x^2 + 8x +16 + y^2 -6y +9 = -21 + 16 +9
(x+4)^2 + (y-3)^2 = 4
So the radius is 2
lydialiliu

Answer:

2 units

Step-by-step explanation:

edgenuity 2020

hope this helps!