Question

$( \sqrt{3} + \sqrt{2} + \sqrt{5} )( \sqrt{3} - \sqrt{2} - \sqrt{5} )$

Answer 1

Answer : -2(2+√10)

Solution :
__________

$( \sqrt{3} + \sqrt{2} + \sqrt{5})( \sqrt{3} - \sqrt{2} - \sqrt{5} ) \\ \\ > 3 - \sqrt{6} - \sqrt{15} + \sqrt{6} - 2 - \sqrt{10} + \sqrt{15} - \sqrt{10} - 5 \\ \\ = > 3 - 2 - 5 - 2 \sqrt{10} \\ \\ = > - 4 - 2 \sqrt{10} \\ \\ = > - 2(2 + \sqrt{10} )$