Dane su kružnice

i

. Koja je nultočka njihove radikalne osi?
The circles

and

are given. What is the zero of their radical axis?
[lang=hr]
Dane su kružnice $x^2 + y^2 - 8x - 12y +43=0$ i $x^2+y^2-18x-6y+89=0$. Koja je nultočka njihove radikalne osi?
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[lang=en]
The circles $x^2 + y^2 - 8x - 12y +43=0$ and $x^2+y^2-18x-6y+89=0$ are given. What is the zero of their radical axis?
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