Respostas

2013-12-15T11:03:37-02:00
(x-3)+(y+5) = 49
x² - 2.3x + 3² + y² + 2.5.y + 5² -49 = 0
x² - 2.3x + 9 + y² + 2.5.y + 25 -49 = 0
 x² + y ² - 6x + 10y - 15 = 0