Question Number 27624 by gopikrishnan005@gmail.com last updated on 11/Jan/18
$$\left({D}^{\mathrm{2}} +\mathrm{2}{D}+\mathrm{1}\right){y}={x}^{\mathrm{2}} +\mathrm{2}{x}+\mathrm{1} \\ $$
Commented by prakash jain last updated on 12/Jan/18
$${D}=\frac{{d}}{{dx}}? \\ $$
Commented by abdo imad last updated on 12/Jan/18
$${this}\:{question}\:{is}\:{done}. \\ $$
Commented by abdo imad last updated on 12/Jan/18
$${yes} \\ $$