Question: Implicit Plot Graph

Help please! I have a problem that states "use implicit plot to graph 3x^2 + 2xy + y^2 = 4 on the interval [-5,5]". I'm not sure how to do an implicit graph, or how to identify the interval to plot. If anyone can help me, please let me know, I've been working on this one for hours (I have Maple 10). Thank you, Stacey
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