[tex]circumference\:x^2-6x+8y+y^2=0[/tex]
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Answer:
x^2-6x+8y+y^2=0
x(x-6)+y(y+8)=0
Verified answer
[tex]\mathrm{Circle\:circumference\:given}\:x^2-6x+8y+y^2=0:\quad C=10\pi[/tex]
[tex]\mathrm{Circle\:circumference}[/tex]
[tex]C=2\pi r[/tex]
[tex]\mathrm{Circle\:radius\:given}\:x^2-6x+8y+y^2=0:\quad r=5[/tex]
[tex]C=2\pi 5[/tex]
[tex]C=10\pi[/tex]