Chief Editor
Chief Editor
 Mar 27, 2024
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$x^{2}+20x+y^{2}+16y=-20$

The equation above defines a circle in the $xy$-plane. What are the coordinates of the center of the circle?
Difficulty: Hard
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A:

$(-20,-16)$

B:

$(-10,-8)$

C:

$(10,8)$

D:

$(20,16)$

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