An ellipse or a circle.
Work Step by Step
Step 1. From the given equation, we have $A=5, B=-2, C=5$ Step 2. Evaluate $B^2-4AC=(-2)^2-4(5)(5)=4-100=-96$ Step 3. As $B^2-4AC\lt0$, the equation represents an ellipse or a circle.
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