Question

Vă rog !!! Dau coroana !!!​

Answer 1

$= | - 4 \sqrt{ 3} + \sqrt{7} | - | - 3\sqrt{7} - 10 \sqrt{3} | = 4 \sqrt{3} - \sqrt{7} - (3 \sqrt{7} + 10 \sqrt{3} ) = 4 \sqrt{3} - \sqrt{7} - 3 \sqrt{7} - 10 \sqrt{3} = - 6 \sqrt{3} - 4 \sqrt{7}$