Trig/ Algebra 2 circles center-radius form, please help!

Write the equation of the circle x^2 + y^2 + 4x - 6y - 5 = 0 in center-radius form.

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Rearrange
x^2 + 4x + y^2 - 6y - 5 = 0
(x + 2)^2 - 4 + (y - 3)^2 - 9 - 5 = 0
(x + 2)^2 + (y - 3)^2 = 4 + 9 + 5
(x+ 2)^2 + (y - 3)^2 = 18
Centre (-2,3)
Radius Sqrt18