Question: Show that the two circle x2 + y2 - 4x - 2y - 11 = 0 and x2 + y2 + 20x - 12y +

Show that the two circle x2 + y2 - 4x - 2y - 11 = 0 and x2 + y2 + 20x - 12y + 72 = 0 do not intersect.

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