Question Number 8353 by Nayon last updated on 09/Oct/16
$$\sqrt{\mathrm{240}+\mathrm{2}\sqrt{\mathrm{14319}}}=? \\ $$
Answered by ridwan balatif last updated on 09/Oct/16
$$\sqrt{\left(\mathrm{111}+\mathrm{129}\right)+\mathrm{2}\sqrt{\mathrm{111}.\mathrm{129}}},\:\mathrm{remember}\::\sqrt{\left({a}+{b}\right)+\mathrm{2}\sqrt{{ab}}}=\sqrt{{a}}+\sqrt{{b}} \\ $$$$\sqrt{\mathrm{111}}+\sqrt{\mathrm{129}} \\ $$$$\mathrm{by}\:\mathrm{using}\:\mathrm{kalkulator},\:\mathrm{i}\:\mathrm{get} \\ $$$$\mathrm{21}.\mathrm{89} \\ $$
Commented by Nayon last updated on 09/Oct/16
$${how}\:{did}\:{you}\:{get}\:\mathrm{111}\:{and}\:\mathrm{129}? \\ $$
Commented by prakash jain last updated on 11/Oct/16
$$\mathrm{I}\:\mathrm{think}\:\mathrm{Ridwan}\:\mathrm{used} \\ $$$$\mathrm{111}+\mathrm{129}=\mathrm{240}\:{etc} \\ $$