10. 计算:
(1) $|\sqrt{3}-2|-(-1+\sqrt{3})(2-\sqrt{3})$;
(2) $(\sqrt{24}-\sqrt{6})×\sqrt{3}-\dfrac{6}{\sqrt{2}}-(\sqrt{2}+1)^{2}$.
(1) $|\sqrt{3}-2|-(-1+\sqrt{3})(2-\sqrt{3})$;
(2) $(\sqrt{24}-\sqrt{6})×\sqrt{3}-\dfrac{6}{\sqrt{2}}-(\sqrt{2}+1)^{2}$.
答案:10. (1) $7-4\sqrt{3}$; (2) $-3-2\sqrt{2}$.
11. 实数a,b,c在数轴上对应点的位置如图所示,化简


.
.
答案:11. $2b$.