Quadratische Gleichungen/Durchschnitt/1/Aufgabe

Bestimme die Schnittpunkte der beiden Ellipsen

{}{\left\{(x,y)\in \mathbb {R} ^{2}\mid x^{2}+xy+3y^{2}=3\right\}}

und

{}{\left\{(x,y)\in \mathbb {R} ^{2}\mid 2x^{2}-xy+y^{2}=4\right\}}

.

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