求解非齐次线性方程组.(如有负号，请使用英文下短负号) 解：增广矩阵，令x2=c1，x3=c2，则，因此，=++，（其中c1, c2是任意常数）.这里，a1= ,a2= ,a3= ,a4= ,a5= ,a6= ,a7= ,a8= ,a9= ,a10= ,a11= ,a12= ,a13= ,a14= ,a15= ./ananas/latex/p/808292/ananas/latex/p/808294/ananas/latex/p/149/ananas/latex/p/808295/ananas/latex/p/149/ananas/latex/p/808296/ananas/latex/p/149/ananas/latex/p/808298/ananas/latex/p/808318/ananas/latex/p/808264/ananas/latex/p/808305/ananas/latex/p/808310/ananas/latex/p/808321