Category: Algebra

Question Number 155480 by mathdanisur last updated on 01/Oct/21 $$\mathrm{Find}\mathrm{the}\mathrm{positive}\mathrm{integer}\mathrm{solution}$$$$\mathrm{of}\mathrm{the}\mathrm{equation}:$$$${\mathrm{x}}^3+{\mathrm{y}}^3=911(\mathrm{xy}+49)$$ Answered by Rasheed.Sindhi last updated on 01/Oct/21…

Question Number 89938 by jagoll last updated on 20/Apr/20 $$\mathrm{If}\mathrm{x}(\mathrm{x}+1)=1$$$$\mathrm{find}{(\mathrm{x}+1)}^3-\frac{1}{{(\mathrm{x}+1)}^3}$$ Commented by john santu last updated on 20/Apr/20 $${let}\:{x}+\mathrm{1}=\:{t}\:\Rightarrow{x}\:=\:{t}−\mathrm{1}…

Question Number 155462 by Jonathanwaweh last updated on 30/Sep/21 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 89920 by akash4081 last updated on 20/Apr/20 $$x=\frac{1}{1+\frac{1}{1+x}}andy=\frac{2}{2+\frac{1}{1+y}}findx+y$$ Commented by john santu last updated on 20/Apr/20 $$x=\frac{x+1}{x+2}\Rightarrow x=\frac{-1\pm \sqrt{5}}{2}$$$$y=\frac{2(y+1)}{2y+3}\Rightarrow y=\frac{-1\pm \sqrt{17}}{4}$$$$\therefore\:{x}+{y}\:=\:\left(\frac{−\mathrm{1}\pm\sqrt{\mathrm{5}}}{\mathrm{2}}\right)+\left(\frac{−\mathrm{1}\pm\sqrt{\mathrm{17}}}{\mathrm{4}}\right)…

Question Number 89907 by necxxx last updated on 19/Apr/20 $$Ifthesumof4numbersisbetween$$$$53and57thenthearithmeticmeanof$$$$thenumberscouldbeoneofthe$$$$following$$$$$$$$a)11.5b)12c)12.5d)13e)14$$ Answered by MJS…