What is x^2-18x+y^2=25 ?

The solution to x^2-18x+y^2=25 is Circle with (a,b)=(9,0),r=sqrt(106)

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x^2-18x+y^2=25

x^{2} - 18 x + y^{2} = 25

(a, b) = (9, 0), r = 106

Solution steps

x^{2} - 18 x + y^{2} = 25

Rewrite

x^{2} - 18 x + y^{2} = 25

in the form of the standard circle equation

(x - 9)^{2} + (y - 0)^{2} = (106)^{2}

Therefore the circle properties are:

(a, b) = (9, 0), r = 106

x^{2} + y^{2} - 4 x + 4 = \frac{9}{16}

(x + 2)^{2} + (y + 5)^{2} = 144

4 x^{2} + 4 y^{2} - 4 x - 8 y - 11 = 0

x^{2} + y^{2} + x + 6 y + 9 = 0

x^{2} + y^{2} + 4 x + 2 y - 4 = 0

What is x^2-18x+y^2=25 ?
The solution to x^2-18x+y^2=25 is Circle with (a,b)=(9,0),r=sqrt(106)