Question Number 1750 by Lissy=ž=ždd <ÿ <ÿ=‹=‹ last updated on 14/Sep/15
$$\left({x}+\mathrm{3}\right)^{\mathrm{3}} \\ $$
Answered by Rasheed Ahmad last updated on 14/Sep/15
$$=\left({x}\right)^{\mathrm{3}} +\mathrm{3}\left({x}\right)^{\mathrm{2}} \left(\mathrm{3}\right)+\mathrm{3}\left({x}\right)\left(\mathrm{3}\right)^{\mathrm{2}} +\left(\mathrm{3}\right)^{\mathrm{3}} \\ $$$$={x}^{\mathrm{3}} +\mathrm{9}{x}^{\mathrm{2}} +\mathrm{27}{x}+\mathrm{27} \\ $$