Find the values of x for which the function is continuous. 
Definitions:
Aromatic
Refers to organic compounds that contain one or more planar rings of atoms with delocalized pi electrons, exhibiting special stability.
Antiaromatic
Antiaromaticity describes molecules that fail to comply with Huckel's rule, having conjugated pi systems with 4n π electrons that lead to destabilization.
Nonaromatic
Referring to organic compounds that do not have the aromatic stability associated with the delocalized pi electrons in a ring structure.
Aromatic Heterocycles
Rings of carbon atoms containing at least one non-carbon atom (heteroatom) like nitrogen, oxygen, or sulfur, that are stable due to aromaticity, important in many biological molecules and synthetic compounds.
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