Question Number 5466 by 3 last updated on 15/May/16
$$\sqrt{\mathrm{8}} \\ $$
Answered by FilupSmith last updated on 15/May/16
$$\sqrt{\mathrm{8}}=\sqrt{\mathrm{4}×\mathrm{2}} \\ $$$$=\sqrt{\mathrm{4}}\sqrt{\mathrm{2}} \\ $$$$\therefore\sqrt{\mathrm{8}}=\mathrm{2}\sqrt{\mathrm{2}} \\ $$