Ola Carol
x² - 2x + y² + 4y - 4 = 0
x² - 2x + 1 - 1 + y² + 4y + 4 - 4 - 4 = 0
(x - 1)² + (y + 2)² = 3²
centro C(1,-2) e raio r = 3
pronto
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Ola Carol
x² - 2x + y² + 4y - 4 = 0
x² - 2x + 1 - 1 + y² + 4y + 4 - 4 - 4 = 0
(x - 1)² + (y + 2)² = 3²
centro C(1,-2) e raio r = 3
pronto