var('y z')

(y, z)

implicit_plot3d((x^2+9/4*y^2+z^2-1)^3-x^2*z^3-9/80*y^2*z^3,(x,-1.5,1.5),(y,-1.5,1.5),(z,-1.5,1.5),
                plot_points=140,color='lemonchiffon').show(viewer='threejs',online=True,frame=False)