题目计算下列各题(1)6−33+(2+2)(2−2)\left(1\right)\dfrac{\sqrt {6}-\sqrt {3}}{\sqrt {3}}+\left(2+\sqrt {2}\right)\left(2-\sqrt {2}\right)(1)36−3+(2+2)(2−2)(2)2(2−3)−∣22−3∣+(−3)2\left(2\right)\sqrt {2}\left(\sqrt {2}-3\right)-|2\sqrt {2}-3|+\sqrt {\left(-3\right)^{2}}(2)2(2−3)−∣22−3∣+(−3)2(3)512+913+1248\left(3\right)5\sqrt {12}+9\sqrt {\dfrac{1}{3}}+\dfrac{1}{2}\sqrt {48}(3)512+931+2148(4)(3+2)2−48+8×12\left(4\right)\left(\sqrt {3}+2\right)^{2}-\sqrt {48}+\sqrt {8}\times \sqrt {\dfrac{1}{2}}(4)(3+2)2−48+8×21知识点：二次根式的性质与化简章节：第2章 实数 / 2.3 二次根式
