Would I have to find the deflection for a beam with roller and pin joints?

P1/2Figure 2: Schematic diagram of the simply supported beam.Show that the spring constant for the beam structure shown in figure 2, subjected to a vertical pointforce, P, at the mid-point along the beam, is given by k =48EI13The displacement is measured as thevertical deflection of the beam at the point of application of P (the mid-point along the beam).