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

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

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

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

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

Solution steps

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

Rewrite

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

in the form of the standard circle equation

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

Therefore the circle properties are:

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

x^{2} + x + 1

\frac{x ^{2}}{16} + \frac{y ^{2}}{9} = 1

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

y = - x^{2} + 4 x + 1

25 x^{2} + 9 y^{2} = 225

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