Answer
An ellipse or a circle.
Work Step by Step
Step 1. From the given equation, we have
$A=10, B=24, C=17$
Step 2. Evaluate
$B^2-4AC=(24)^2-4(10)(17)=576-680=-104$
Step 3. As $B^2-4AC\lt0$, the equation represents an ellipse or a circle.