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x-3-3-




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

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