Question Number 35623 by abdo mathsup 649 cc last updated on 21/May/18
$${solve}\:{the}\:{differencial}\:{system} \\ $$$$\left\{_{{y}^{'} =\:{y}\:+\mathrm{2}{z}\:+{t}^{\mathrm{2}} } ^{{x}^{'} \:\:=\:{y}\:+{t}^{\mathrm{2}} } \right. \\ $$$$\left\{{z}^{'} \:=\mathrm{2}{x}−\mathrm{2}{y}\right. \\ $$