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Answer 1 · 2016-01-21T18:47:11

#(x+4)^2+(y-2)^2=9#

With the center in #C(x_o,y_o)# and radius #R# the equation of the circle is
#(x-x_o)^2+(y-y_o)^2=R^2#

In case
#(x+4)^2+(y-2)^2=3^2#