Question $1$

$0\mathrm{.}5/1$ pt

$5$

$98$

Detail

Convert the differential equation $u^{\text{'}\text{'}}+2u^{\text{'}}+u=e^{4t}$ into a system of first order equations by letting $x=u,y=u^{\text{'}}$

$x^{\text{'}}=$

$y^{\text{'}}=$