\documentclass[11pt, a4paper, x11names]{article}
    \usepackage[utf8]{inputenc}
    \usepackage[T1]{fontenc}
    \usepackage{fourier}

    \usepackage{pst-plot}
    \usepackage{pst-node}
    \usepackage{auto-pst-pdf}
    \def\f{sqrt(2.2*x*(x²-4))}


    \begin{document}

    \psset{plotpoints=200, plotstyle=curve, algebraic, arrowinset=0.12, }%
    \begin{pspicture*}(-4.5,-7.5)(5,8)
        \psaxes[linecolor=LightSteelBlue3, tickcolor=LightSteelBlue3, ticksize=-2pt 2pt, labels =none, arrows=->, ](0,0)(-4.5,-7.5)(5,8)[$x$, -120][$y$, -135]
        %
        \psset{linewidth=1.5pt, linecolor=IndianRed3}
        \psplot{-2}{0}{\f}%
        \psplot{2}{5}{\f}%
        \psplot{-2}{0}{-\f}%
        \psplot{2}{5}{-\f}%
    \end{pspicture*}

    \end{document}