Question Number 168525 by LEKOUMA last updated on 12/Apr/22
$${Resolve} \\ $$$${x}^{\mathrm{2}} {y}^{''} +{xy}^{'} +{y}=\mathrm{1} \\ $$
Answered by mindispower last updated on 13/Apr/22
$${ax}^{\mathrm{2}} {y}''\left({x}\right)+{bxy}'\left({x}\right)+{cy}={P}\left({x}\right),{wherre}\:{P}\:{polynom} \\ $$$${can}\:{be}\:{solved} \\ $$$${x}={e}^{{t}} \:“{x}^{\mathrm{2}} {y}''+{x}\:{y}'+{y}=\mathrm{0}'' \\ $$$$\:\:{turn}\:{into}\:{linear}\:{equation} \\ $$