Question

$( \sqrt{3} + \sqrt{2} )$ ·$(5- \sqrt{6} )+2-2 \sqrt{2} +1 - 3 \sqrt{3}$

Answer 1

$5\sqrt{3} -3\sqrt{2}+ 5\sqrt{2} -2\sqrt{3} +3 -2\sqrt{2} -3\sqrt{3} = \\ \\ =5\sqrt{3} -5\sqrt{3} +5\sqrt{2} -5\sqrt{2} +3 = \\ \\ \boxed{=3}$

Answer 2

 (√3+√2)·(5-√6)+2-2√2+1-3√3 = 5√3-√18+5√2-√12+3-2√2-3√3 = 5√3-3√2+5√2-2√3-2√2-3√3+3 = 3