Respostas

2014-06-04T20:47:49-03:00
(x - 2)² + (y - 3)² = 2²
x² - 4x + 4 + y² - 6y + 9 = 4
x² + y² - 4x - 6y + 4 + 9 - 4 = 0
x² + y² - 4x - 6y +9 = 0
1 5 1