Minus-plus(∓) symbol in LaTeX

Symbol/Unicode Minus-plus/U+2213
Type of symbol Both minus or plus operations
Package (requirement) No
Argument No
Latex command \mp
Example \mp → ∓

You need to use the \mp command to print the minus-plus symbol in a latex document. And this is a default command, no package is required.

\documentclass{article}
\begin{document}
$$p\mp$$
$$\frac{(x\pm 1)}{(x \mp 2)}$$
$$a \mp b$$
\end{document}

Output :