Question

c)-2(radical 12 - radical 2)+ 5( radical3- radical8 ) -7(3 radical 3 +9 radical 2)=

Answer 1

-2($2 \sqrt{3}$-$\sqrt{2}$)+5($\sqrt{3}$-2$\sqrt{2}$)-7(3$\sqrt{3}$+9$\sqrt{2}$)=-4$\sqrt{3} +2 \sqrt{2}+5 \sqrt{3}-10 \sqrt{2}-21 \sqrt{3}-63 \sqrt{2}=-71 \sqrt{2}-20 \sqrt{3}$