# Plus minus(±) symbol in LaTeX

Symbol Plus-minus
Type of symbol Mathematics
Package (requirement) No
Argument No
Latex command \pm
Example a \pm b → a ± b

Mathematically, use of plus-minus symbols is much higher. And \pm command is present to denote the plus-minus symbol in latex. You don’t have to take any external package for this.

\documentclass{article}
\begin{document}
$$a \pm b$$
$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$
$$2ax_1=-b\pm\sqrt{b^2-4ac}$$
\end{document}

Salida :