de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Geometry >

x^2+4x+y^2+8y+16=0

Lösung

x^{2} + 4 x + y^{2} + 8 y + 16 = 0

Lösung

(a, b) = (- 2, - 4), r = 2

Schritte zur Lösung

x^{2} + 4 x + y^{2} + 8 y + 16 = 0

Rewrite

x^{2} + 4 x + y^{2} + 8 y + 16 = 0

in the form of the standard circle equation

(x - (- 2))^{2} + (y - (- 4))^{2} = 2^{2}

Therefore the circle properties are:

(a, b) = (- 2, - 4), r = 2

Graph

Beliebte Beispiele

(x^2+(-10)x+25)+(y^2+9y+81/4)=-1+25+81/4

(x^{2} + (- 10) x + 25) + (y^{2} + 9 y + \frac{81}{4}) = - 1 + 25 + \frac{81}{4}

x^2+6x+y^2-2y-26=0

x^{2} + 6 x + y^{2} - 2 y - 26 = 0

x^2+y^2+9x-10=0

x^{2} + y^{2} + 9 x - 10 = 0

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

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

(x+4)^2+(y+2)^2=4

(x + 4)^{2} + (y + 2)^{2} = 4