The circles x^(2)+y^(2)-2x-4y+1=0 and x^...

The circles `x^(2)+y^(2)-2x-4y+1=0` and `x^(2)+y^(2)+4y-1 =0`

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The correct Answer is:

`3(x^2+y^2)-14x+23y-15=0`

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