how would you find the center and radius of the circle given 4(x+7)^2+4(y+11)^2=169

how would you find the center and radius of the circle given 4(x+7)^2+4(y+11)^2=169
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4(x+7)^2 +4*(y+11)^2 =169 . . . (x+7)^2 +(y+11)^2=169/4=42.25 . . . senter=(-7, -11) . . . radius=sqroot(42.25)=6.5
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