In: Advanced Math
Given the differential equation (ax+b)2d2y/dx2+(ax+b)dy/dx+y=Q(x) show that the equations ax+b=et and t=ln(ax+b) reduces this equation to a linear equation with constant coefficients hence solve
(1+x)2d2y/dx2+(1+x)dy /dx+ y=(2x+3)(2x+4)