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Find coefficients a,b,c and d so that the curve of a circle in an xy plane, with points (-4,5), (-2,7) and (4,-3), is given by the equation ax^{2}+ ay^{2}+ bx + cy + d = 0.

Not even sure where to start. Can anyone help me with this?

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# Homework Help: Linear Algebra / Gaussian Elimination

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