x²⬆️

#superscript two #squared #power of two #x squared #variable squared

n²

#algebra #formula #variable squared #math notation #general form

🇺²

#u squared #power of two #u power 2 #variable squared

S²

#s squared #variable squared #s power 2 #algebraic expression

K²

#ksquared #power of 2 #variable squared