||'''Book'''|| Advanced Engineering Mathematics || ||'''Author'''|| Erwin Kreyszig || ||'''Edition'''|| 8th Edition || /* code_begins */ {{{ #Kreyszig Problem set 2.9 Question 15 var('x') y=function('y',x) print desolve(diff(y,x,2)+1.5*diff(y,x)-y==(12*x*x)+(6*x*x*x)-(x*x*x*x),[y,x],ics=[0,4,-8])}}} /* code_ends */ * '''Solution by''': * , , * , ,