C. Determine the center and radius of each of the following circle. 9. x + y - 10x + 12y + 41 = 0 10. x? + y + 3x - 8y + 6 = 0 11. 5x2 + 5y2 - 14x + 8y - 7 = 0

Q: = 121, y = 181?, 0 sts v8

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