In this case, we'll have to carry out several steps to find the solution.
Step 01:
center (-6, 4)
radius = √19
equation of the circle = ?
Step 02:
equation of a circle
(x - a)² + (y - b)² = r²
(x - (-6)) + (y - (4)) = (√19)²
(x + 6)² + (y - 4)² = 19
The answer is:
(x + 6)² + (y - 4)² = 19