The cantilever beam illustrated below is subject to an uniform distributed load with magnitude w = 10 kN/m and a couple moment with magnitude M_o = 8 kN. m. Assume a = 4 m. For the questions below, the dimension x is given in meters. Obtain the expressions for bending moment M(x) where 2a < x < 3a. You need to write the numeric coefficients of the equations. M(x) = [kN.m]