问题
填空题
过P（-2，4）及Q（3，-1）两点，且在x轴上截得的弦长为6的圆方程是（ ）。
答案
(x-1)2+(y-2)2=13或(x-3)2+(y-4)2=25
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过P（-2，4）及Q（3，-1）两点，且在x轴上截得的弦长为6的圆方程是（ ）。
(x-1)2+(y-2)2=13或(x-3)2+(y-4)2=25
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