Answer:
The general form of a circle is :
x² + y² + 2gx + 2fy + c = 0
Step-by-step explanation:
You can always compare any equation of a circle given to you in that form to get it centre and it radius if needed.
For example: the equation you gave... x² + y² + 8x +22y +37 = 0. It centre is (h,k) (-4,-11).
