Standard question: how to find the intersection(s) of two functions.
1. Subtract them. Where the difference is zero, there lies an intersection.
2. Use a root finder. That could be anything from fzero, solve, vpasolve, fsolve, etc.
Note that all standard optimization based root finders will find ONE root, and only one root. It will depend on your starting values. Solve might be able to find the three points of intersection I saw on the plot.
The lazy solution to finding an approximate root is to use a tool like Doug Schwarz's intersections code on the FEX. Evaluate each function at a few hundred points, then call intersections. It will use linear interpolation to find the crossing points. But a virtue of that solution is it will report all crossings between the curves.