Kindly provide step by step solution with formulas and GRAPHS. DO NOT COPY from other sources' work. Provide own solution to the problem below. It is preferred to have typewritten solution for better understanding or you can write as eligible as possible.

Obtain the bound states for a quantum well with a depth of 240 meV, width of 90A and the particle mass is 0.06x mass of an electron. Get both the even and odd bound states. Hint: Find the intersection between the two transcendental equation given as tan z - 2 and - cot(z) - 1. Note that the accuracy of 1 meV is only the one needed. Use any graphing software to show the plot and indicate the value in energy where they intersect