What is x^2-6x+y^2-4y=-9 ?

The solution to x^2-6x+y^2-4y=-9 is Circle with (a,b)=(3,2),r=2

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x^2-6x+y^2-4y=-9

x^{2} - 6 x + y^{2} - 4 y = - 9

(a, b) = (3, 2), r = 2

Solution steps

x^{2} - 6 x + y^{2} - 4 y = - 9

Rewrite

x^{2} - 6 x + y^{2} - 4 y = - 9

in the form of the standard circle equation

(x - 3)^{2} + (y - 2)^{2} = 2^{2}

Therefore the circle properties are:

(a, b) = (3, 2), r = 2

(x - 10)^{2} + (y - 5)^{2} = 28

f (x) (f (x)) = - x^{2} + 3 x

x^{2} - 6 x + y^{2} - 4 y = - 4

x^{2} + y^{2} - 18 x + 12 y + 80 = 0

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

What is x^2-6x+y^2-4y=-9 ?
The solution to x^2-6x+y^2-4y=-9 is Circle with (a,b)=(3,2),r=2