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The equation of the circle shown in the following diagram can be written as x^2 + Ay^2 + Bx + Cy + D = 0.  Find A + B + C + D.

 

 Nov 1, 2020
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(x+1)^2+(y-1)^2  = 3^2 + 2^2     expand and re-arrange

 Nov 1, 2020

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