Question Number 125692 by fajri last updated on 13/Dec/20
$${find}\:{soultion}\:: \\ $$$$ \\ $$$${x}'\:=\:\begin{pmatrix}{−\mathrm{2}\:\:\:\:\:\:\:\:\:\mathrm{1}}\\{\mathrm{1}\:\:\:\:\:\:\:\:\:−\mathrm{2}}\end{pmatrix}\:{x}\:+\:\begin{pmatrix}{\mathrm{2}{e}^{−{n}} }\\{\mathrm{3}{n}}\end{pmatrix} \\ $$