Xn.

XN is a polyphenol, a type of abundant organic compound existing in plants and used for millennia by practitioners of traditional medicine.

XN is one of the flavonoids, natural products found in fruits, vegetables, grains, bark, roots, stems, flowers, tea and wine that are well known for their positive effects on health.

The latter is commonly abbreviated to TXN, the former to XN.

All polynomials of degree n—those that have a leading term of xn—split into n distinct terms.

They involve determining which solutions exist for polynomial equations such as xn + yn = zn.