Restricting the Domain of a implicit function in GeoGebra: x⁴ + y⁴ + 2x² y² - 4x³ + 12x y² = 0

As it turns out, it is enough to specify a constraint on the variable x or y once, and the entire implicit function has these constraints.
– Roman Chijner

Information: Restricting the Domain of a implicit function in GeoGebra: x⁴ + y⁴ + 2x² y² - 4x³ + 12x y² = 0